/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-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-04-30 23:33:40,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-30 23:33:40,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-30 23:33:40,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-30 23:33:40,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-30 23:33:40,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-30 23:33:40,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-30 23:33:40,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-30 23:33:40,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-30 23:33:40,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-30 23:33:40,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-30 23:33:40,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-30 23:33:40,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-30 23:33:40,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-30 23:33:40,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-30 23:33:40,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-30 23:33:40,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-30 23:33:40,801 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 [2021-04-30 23:33:40,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-30 23:33:40,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-30 23:33:40,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-30 23:33:40,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-30 23:33:40,835 INFO L138 SettingsManager]: * Use SBE=true [2021-04-30 23:33:40,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-30 23:33:40,836 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-30 23:33:40,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-30 23:33:40,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-30 23:33:40,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-30 23:33:40,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-30 23:33:40,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-30 23:33:40,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-30 23:33:40,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-30 23:33:40,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-30 23:33:40,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-30 23:33:40,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-30 23:33:40,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-30 23:33:40,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-30 23:33:40,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-30 23:33:40,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-30 23:33:40,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-30 23:33:40,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-30 23:33:41,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-30 23:33:41,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-30 23:33:41,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-30 23:33:41,161 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-30 23:33:41,161 INFO L275 PluginConnector]: CDTParser initialized [2021-04-30 23:33:41,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2021-04-30 23:33:41,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1de100f6/aba232d164294744ae042421c3d43b30/FLAGa907fc4c0 [2021-04-30 23:33:41,641 INFO L306 CDTParser]: Found 1 translation units. [2021-04-30 23:33:41,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2021-04-30 23:33:41,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1de100f6/aba232d164294744ae042421c3d43b30/FLAGa907fc4c0 [2021-04-30 23:33:41,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1de100f6/aba232d164294744ae042421c3d43b30 [2021-04-30 23:33:41,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-30 23:33:41,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-30 23:33:41,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-30 23:33:41,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-30 23:33:41,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-30 23:33:41,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473a8170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41, skipping insertion in model container [2021-04-30 23:33:41,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-30 23:33:41,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-30 23:33:41,839 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1224,1237] [2021-04-30 23:33:41,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-30 23:33:41,851 INFO L203 MainTranslator]: Completed pre-run [2021-04-30 23:33:41,910 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1224,1237] [2021-04-30 23:33:41,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-30 23:33:41,929 INFO L208 MainTranslator]: Completed translation [2021-04-30 23:33:41,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41 WrapperNode [2021-04-30 23:33:41,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-30 23:33:41,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-30 23:33:41,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-30 23:33:41,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-30 23:33:41,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... [2021-04-30 23:33:41,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-30 23:33:41,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-30 23:33:41,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-30 23:33:41,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-30 23:33:41,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-30 23:33:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-30 23:33:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-30 23:33:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-30 23:33:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-30 23:33:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-30 23:33:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-30 23:33:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-30 23:33:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-30 23:33:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-30 23:33:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-30 23:33:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-30 23:33:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-30 23:33:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-30 23:33:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-30 23:33:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-30 23:33:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-30 23:33:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-30 23:33:42,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-30 23:33:42,267 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-30 23:33:42,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 11:33:42 BoogieIcfgContainer [2021-04-30 23:33:42,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-30 23:33:42,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-30 23:33:42,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-30 23:33:42,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-30 23:33:42,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 11:33:41" (1/3) ... [2021-04-30 23:33:42,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5063e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 11:33:42, skipping insertion in model container [2021-04-30 23:33:42,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:33:41" (2/3) ... [2021-04-30 23:33:42,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5063e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 11:33:42, skipping insertion in model container [2021-04-30 23:33:42,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 11:33:42" (3/3) ... [2021-04-30 23:33:42,274 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2021-04-30 23:33:42,278 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-30 23:33:42,281 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-30 23:33:42,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-30 23:33:42,311 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-30 23:33:42,311 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-30 23:33:42,312 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-30 23:33:42,312 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-30 23:33:42,312 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-30 23:33:42,312 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-30 23:33:42,312 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-30 23:33:42,312 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-30 23:33:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-30 23:33:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-30 23:33:42,340 INFO L511 BasicCegarLoop]: Found error trace [2021-04-30 23:33:42,340 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-30 23:33:42,341 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-30 23:33:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-30 23:33:42,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1410293457, now seen corresponding path program 1 times [2021-04-30 23:33:42,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-30 23:33:42,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720926448] [2021-04-30 23:33:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-30 23:33:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:33:42,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:42,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-30 23:33:42,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:42,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-30 23:33:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:33:42,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-30 23:33:42,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-04-30 23:33:42,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720926448] [2021-04-30 23:33:42,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720926448] provided 1 perfect and 0 imperfect interpolant sequences [2021-04-30 23:33:42,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-30 23:33:42,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-30 23:33:42,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497242275] [2021-04-30 23:33:42,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-30 23:33:42,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-30 23:33:42,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-30 23:33:42,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-30 23:33:42,609 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-30 23:33:42,732 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2021-04-30 23:33:42,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-30 23:33:42,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-04-30 23:33:42,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-30 23:33:42,747 INFO L225 Difference]: With dead ends: 36 [2021-04-30 23:33:42,747 INFO L226 Difference]: Without dead ends: 20 [2021-04-30 23:33:42,749 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-30 23:33:42,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-04-30 23:33:42,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-04-30 23:33:42,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:42,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-04-30 23:33:42,787 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2021-04-30 23:33:42,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-30 23:33:42,787 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-04-30 23:33:42,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-04-30 23:33:42,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-30 23:33:42,789 INFO L511 BasicCegarLoop]: Found error trace [2021-04-30 23:33:42,790 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-30 23:33:42,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-30 23:33:42,790 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-30 23:33:42,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-30 23:33:42,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1346650520, now seen corresponding path program 1 times [2021-04-30 23:33:42,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-30 23:33:42,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859440771] [2021-04-30 23:33:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-30 23:33:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:33:42,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-04-30 23:33:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-30 23:33:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:42,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:42,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-30 23:33:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:33:43,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:33:43,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:33:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-30 23:33:43,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-04-30 23:33:43,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859440771] [2021-04-30 23:33:43,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859440771] provided 1 perfect and 0 imperfect interpolant sequences [2021-04-30 23:33:43,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-30 23:33:43,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-30 23:33:43,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838340655] [2021-04-30 23:33:43,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-30 23:33:43,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-30 23:33:43,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-30 23:33:43,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-30 23:33:43,029 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:43,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-30 23:33:43,200 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2021-04-30 23:33:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-30 23:33:43,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-04-30 23:33:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-30 23:33:43,201 INFO L225 Difference]: With dead ends: 29 [2021-04-30 23:33:43,201 INFO L226 Difference]: Without dead ends: 0 [2021-04-30 23:33:43,202 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 149.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-30 23:33:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-30 23:33:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-30 23:33:43,202 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) [2021-04-30 23:33:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-30 23:33:43,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-04-30 23:33:43,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-30 23:33:43,203 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-30 23:33:43,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:33:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-30 23:33:43,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-30 23:33:43,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-30 23:33:43,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-30 23:33:43,361 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-04-30 23:33:43,362 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-04-30 23:33:43,362 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-04-30 23:33:43,362 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-04-30 23:33:43,362 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)|) (= ~__return_107~0 |old(~__return_107~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-04-30 23:33:43,362 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-04-30 23:33:43,362 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-04-30 23:33:43,362 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-30 23:33:43,362 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point L27(lines 27 49) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 9 78) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point L54(lines 54 76) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 9 78) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 63) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point L63(line 63) no Hoare annotation was computed. [2021-04-30 23:33:43,363 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 9 78) the Hoare annotation is: (= |old(~__return_107~0)| ~__return_107~0) [2021-04-30 23:33:43,363 INFO L198 CegarLoopUtils]: For program point L61(lines 61 70) no Hoare annotation was computed. [2021-04-30 23:33:43,364 INFO L198 CegarLoopUtils]: For program point L18(lines 18 50) no Hoare annotation was computed. [2021-04-30 23:33:43,364 INFO L198 CegarLoopUtils]: For program point L16(lines 16 77) no Hoare annotation was computed. [2021-04-30 23:33:43,365 INFO L194 CegarLoopUtils]: At program point L47(lines 10 78) the Hoare annotation is: (let ((.cse0 (= |old(~__return_107~0)| ~__return_107~0))) (or (and .cse0 (= main_~main__y~0 1)) (and .cse0 (<= main_~main__x~0 (let ((.cse1 (div main_~main__x~0 4294967296))) (let ((.cse3 (* .cse1 (- 4294967296)))) (let ((.cse2 (div (+ .cse3 main_~main__x~0) 3))) (+ (* 4294967296 .cse1) (* 3 .cse2) (* 4294967296 (div (+ .cse3 (* .cse2 (- 3)) main_~main__x~0) 4294967296)))))))))) [2021-04-30 23:33:43,365 INFO L198 CegarLoopUtils]: For program point L37(lines 37 48) no Hoare annotation was computed. [2021-04-30 23:33:43,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 11:33:43 BoogieIcfgContainer [2021-04-30 23:33:43,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-30 23:33:43,383 INFO L168 Benchmark]: Toolchain (without parser) took 1712.71 ms. Allocated memory is still 190.8 MB. Free memory was 154.8 MB in the beginning and 164.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 93.6 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:43,384 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 190.8 MB. Free memory is still 171.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-30 23:33:43,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.16 ms. Allocated memory is still 190.8 MB. Free memory was 154.7 MB in the beginning and 173.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 10.8 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:43,384 INFO L168 Benchmark]: Boogie Preprocessor took 39.37 ms. Allocated memory is still 190.8 MB. Free memory was 173.6 MB in the beginning and 172.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:43,385 INFO L168 Benchmark]: RCFGBuilder took 297.33 ms. Allocated memory is still 190.8 MB. Free memory was 172.0 MB in the beginning and 157.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:43,385 INFO L168 Benchmark]: TraceAbstraction took 1113.07 ms. Allocated memory is still 190.8 MB. Free memory was 156.8 MB in the beginning and 164.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 96.5 MB. Max. memory is 8.0 GB. [2021-04-30 23:33:43,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 190.8 MB. Free memory is still 171.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 255.16 ms. Allocated memory is still 190.8 MB. Free memory was 154.7 MB in the beginning and 173.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 10.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.37 ms. Allocated memory is still 190.8 MB. Free memory was 173.6 MB in the beginning and 172.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 297.33 ms. Allocated memory is still 190.8 MB. Free memory was 172.0 MB in the beginning and 157.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1113.07 ms. Allocated memory is still 190.8 MB. Free memory was 156.8 MB in the beginning and 164.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 96.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 63]: 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 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 894.4ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 20.0ms, AutomataDifference: 324.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 157.3ms, InitialAbstractionConstructionTime: 8.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 46 SDslu, 19 SDs, 0 SdLazy, 54 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 113.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 214.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 95 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 25.0ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 122.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 13.6ms SsaConstructionTime, 105.6ms SatisfiabilityAnalysisTime, 260.6ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (\old(__return_107) == __return_107 && main__y == 1) || (\old(__return_107) == __return_107 && main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296)) RESULT: Ultimate proved your program to be correct! Received shutdown request...