/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/loops/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-15 23:07:43,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 23:07:43,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 23:07:43,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 23:07:43,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-15 23:07:43,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-15 23:07:43,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-15 23:07:43,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-15 23:07:43,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-15 23:07:43,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-15 23:07:43,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-15 23:07:43,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-15 23:07:43,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-15 23:07:43,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-15 23:07:43,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-15 23:07:43,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-15 23:07:43,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-15 23:07:43,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 23:07:43,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 23:07:43,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 23:07:43,150 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 [2021-04-15 23:07:43,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 23:07:43,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 23:07:43,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 23:07:43,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 23:07:43,199 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 23:07:43,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 23:07:43,200 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 23:07:43,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 23:07:43,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 23:07:43,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 23:07:43,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 23:07:43,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 23:07:43,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 23:07:43,201 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 23:07:43,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 23:07:43,202 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 23:07:43,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 23:07:43,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 23:07:43,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 23:07:43,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 23:07:43,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 23:07:43,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 23:07:43,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 23:07:43,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 23:07:43,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 23:07:43,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 23:07:43,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 23:07:43,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-15 23:07:43,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 23:07:43,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 23:07:43,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 23:07:43,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 23:07:43,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 23:07:43,592 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 23:07:43,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2021-04-15 23:07:43,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155aa1157/6b15c42da6cd44c9a859c75a58a271c2/FLAG596017dec [2021-04-15 23:07:44,073 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 23:07:44,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2021-04-15 23:07:44,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155aa1157/6b15c42da6cd44c9a859c75a58a271c2/FLAG596017dec [2021-04-15 23:07:44,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/155aa1157/6b15c42da6cd44c9a859c75a58a271c2 [2021-04-15 23:07:44,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 23:07:44,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-15 23:07:44,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 23:07:44,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 23:07:44,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 23:07:44,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a4575a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44, skipping insertion in model container [2021-04-15 23:07:44,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 23:07:44,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 23:07:44,251 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c[333,346] [2021-04-15 23:07:44,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 23:07:44,274 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 23:07:44,288 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c[333,346] [2021-04-15 23:07:44,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 23:07:44,328 INFO L208 MainTranslator]: Completed translation [2021-04-15 23:07:44,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44 WrapperNode [2021-04-15 23:07:44,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 23:07:44,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 23:07:44,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 23:07:44,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 23:07:44,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (1/1) ... [2021-04-15 23:07:44,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 23:07:44,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 23:07:44,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 23:07:44,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 23:07:44,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (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 [2021-04-15 23:07:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-15 23:07:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 23:07:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-15 23:07:44,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-15 23:07:44,460 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-04-15 23:07:44,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-15 23:07:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-15 23:07:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-15 23:07:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-15 23:07:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 23:07:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-15 23:07:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-04-15 23:07:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-15 23:07:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-15 23:07:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 23:07:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 23:07:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 23:07:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-15 23:07:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 23:07:44,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 23:07:44,711 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-04-15 23:07:44,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:07:44 BoogieIcfgContainer [2021-04-15 23:07:44,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 23:07:44,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 23:07:44,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 23:07:44,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 23:07:44,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 11:07:44" (1/3) ... [2021-04-15 23:07:44,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e5ac39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:07:44, skipping insertion in model container [2021-04-15 23:07:44,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:07:44" (2/3) ... [2021-04-15 23:07:44,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e5ac39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:07:44, skipping insertion in model container [2021-04-15 23:07:44,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:07:44" (3/3) ... [2021-04-15 23:07:44,737 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.c [2021-04-15 23:07:44,742 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 23:07:44,746 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-15 23:07:44,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-15 23:07:44,813 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 23:07:44,814 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 23:07:44,814 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 23:07:44,814 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 23:07:44,814 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 23:07:44,814 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 23:07:44,814 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 23:07:44,814 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 23:07:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-04-15 23:07:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-04-15 23:07:44,832 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:07:44,833 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:07:44,833 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:07:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:07:44,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1499484955, now seen corresponding path program 1 times [2021-04-15 23:07:44,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:07:44,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872487237] [2021-04-15 23:07:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:07:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:07:45,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:07:45,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:07:45,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:07:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:07:45,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:07:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:07:45,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872487237] [2021-04-15 23:07:45,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:07:45,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 23:07:45,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047773031] [2021-04-15 23:07:45,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 23:07:45,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:07:45,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 23:07:45,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 23:07:45,165 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:07:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:07:45,249 INFO L93 Difference]: Finished difference Result 37 states and 53 transitions. [2021-04-15 23:07:45,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 23:07:45,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-04-15 23:07:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:07:45,258 INFO L225 Difference]: With dead ends: 37 [2021-04-15 23:07:45,258 INFO L226 Difference]: Without dead ends: 19 [2021-04-15 23:07:45,261 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 23:07:45,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-04-15 23:07:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-04-15 23:07:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-15 23:07:45,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-04-15 23:07:45,293 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2021-04-15 23:07:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:07:45,293 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-04-15 23:07:45,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:07:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-04-15 23:07:45,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-15 23:07:45,294 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:07:45,294 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:07:45,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 23:07:45,295 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:07:45,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:07:45,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1713498874, now seen corresponding path program 1 times [2021-04-15 23:07:45,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:07:45,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531249523] [2021-04-15 23:07:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:07:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:07:45,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:07:45,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:07:45,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:07:45,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:07:45,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:07:45,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:07:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:07:45,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:07:45,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-15 23:07:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:07:45,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:07:45,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:07:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:07:45,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531249523] [2021-04-15 23:07:45,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:07:45,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 23:07:45,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961971892] [2021-04-15 23:07:45,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 23:07:45,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:07:45,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 23:07:45,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-15 23:07:45,475 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-04-15 23:07:45,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:07:45,699 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-04-15 23:07:45,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-15 23:07:45,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2021-04-15 23:07:45,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:07:45,700 INFO L225 Difference]: With dead ends: 17 [2021-04-15 23:07:45,700 INFO L226 Difference]: Without dead ends: 0 [2021-04-15 23:07:45,702 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 183.6ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-04-15 23:07:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-15 23:07:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-15 23:07:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 23:07:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-15 23:07:45,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-04-15 23:07:45,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:07:45,703 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-15 23:07:45,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-04-15 23:07:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-15 23:07:45,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-15 23:07:45,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 23:07:45,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-15 23:07:45,947 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-04-15 23:07:45,947 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-04-15 23:07:45,947 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-04-15 23:07:45,947 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-04-15 23:07:45,947 INFO L194 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)|) (= ~x~0 |old(~x~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-04-15 23:07:45,947 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-04-15 23:07:45,948 INFO L194 CegarLoopUtils]: At program point evalENTRY(lines 14 21) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-04-15 23:07:45,948 INFO L198 CegarLoopUtils]: For program point L16-1(lines 14 21) no Hoare annotation was computed. [2021-04-15 23:07:45,948 INFO L198 CegarLoopUtils]: For program point evalEXIT(lines 14 21) no Hoare annotation was computed. [2021-04-15 23:07:45,948 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-04-15 23:07:45,948 INFO L194 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 0) [2021-04-15 23:07:45,948 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-15 23:07:45,948 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-04-15 23:07:45,948 INFO L198 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2021-04-15 23:07:45,949 INFO L194 CegarLoopUtils]: At program point L29(lines 24 35) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-04-15 23:07:45,949 INFO L194 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-04-15 23:07:45,949 INFO L194 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-04-15 23:07:45,949 INFO L194 CegarLoopUtils]: At program point L26-1(lines 26 30) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2021-04-15 23:07:45,949 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2021-04-15 23:07:45,949 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2021-04-15 23:07:45,949 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-04-15 23:07:45,950 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2021-04-15 23:07:45,950 INFO L198 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-04-15 23:07:45,950 INFO L198 CegarLoopUtils]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-04-15 23:07:45,950 INFO L198 CegarLoopUtils]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2021-04-15 23:07:45,950 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-04-15 23:07:45,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 11:07:45 BoogieIcfgContainer [2021-04-15 23:07:45,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 23:07:45,957 INFO L168 Benchmark]: Toolchain (without parser) took 1850.21 ms. Allocated memory is still 203.4 MB. Free memory was 168.6 MB in the beginning and 78.0 MB in the end (delta: 90.6 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. [2021-04-15 23:07:45,957 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 203.4 MB. Free memory is still 185.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-15 23:07:45,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.32 ms. Allocated memory is still 203.4 MB. Free memory was 168.3 MB in the beginning and 186.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-04-15 23:07:45,958 INFO L168 Benchmark]: Boogie Preprocessor took 56.64 ms. Allocated memory is still 203.4 MB. Free memory was 186.6 MB in the beginning and 185.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-15 23:07:45,959 INFO L168 Benchmark]: RCFGBuilder took 324.53 ms. Allocated memory is still 203.4 MB. Free memory was 185.0 MB in the beginning and 171.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-15 23:07:45,959 INFO L168 Benchmark]: TraceAbstraction took 1240.89 ms. Allocated memory is still 203.4 MB. Free memory was 170.8 MB in the beginning and 78.0 MB in the end (delta: 92.8 MB). Peak memory consumption was 93.3 MB. Max. memory is 8.0 GB. [2021-04-15 23:07:45,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 203.4 MB. Free memory is still 185.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 219.32 ms. Allocated memory is still 203.4 MB. Free memory was 168.3 MB in the beginning and 186.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.64 ms. Allocated memory is still 203.4 MB. Free memory was 186.6 MB in the beginning and 185.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 324.53 ms. Allocated memory is still 203.4 MB. Free memory was 185.0 MB in the beginning and 171.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1240.89 ms. Allocated memory is still 203.4 MB. Free memory was 170.8 MB in the beginning and 78.0 MB in the end (delta: 92.8 MB). Peak memory consumption was 93.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 897.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.2ms, AutomataDifference: 342.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 242.3ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 23 SDslu, 17 SDs, 0 SdLazy, 28 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 271.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 22.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 75 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 69.9ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 184 FormulaSimplificationTreeSizeReductionInter, 156.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 50.8ms SatisfiabilityAnalysisTime, 348.2ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...