/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 01:06:54,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 01:06:54,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 01:06:54,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 01:06:54,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 01:06:54,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 01:06:54,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 01:06:54,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 01:06:54,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 01:06:54,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 01:06:54,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 01:06:54,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 01:06:54,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 01:06:54,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 01:06:54,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 01:06:54,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 01:06:54,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 01:06:54,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 01:06:54,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 01:06:54,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 01:06:54,847 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 [2021-05-06 01:06:54,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 01:06:54,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 01:06:54,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-06 01:06:54,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-06 01:06:54,888 INFO L138 SettingsManager]: * Use SBE=true [2021-05-06 01:06:54,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 01:06:54,888 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 01:06:54,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 01:06:54,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 01:06:54,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 01:06:54,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 01:06:54,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 01:06:54,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 01:06:54,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 01:06:54,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 01:06:54,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 01:06:54,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 01:06:54,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 01:06:54,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 01:06:54,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 01:06:54,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 01:06:54,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 01:06:54,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-06 01:06:54,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-06 01:06:54,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 01:06:54,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-06 01:06:54,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 01:06:54,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-06 01:06:54,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 01:06:55,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 01:06:55,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 01:06:55,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 01:06:55,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 01:06:55,343 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 01:06:55,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i [2021-05-06 01:06:55,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f61d9af/df76c2e2987142bd954506ff09f77e2e/FLAG703cd9bb0 [2021-05-06 01:06:55,826 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 01:06:55,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i [2021-05-06 01:06:55,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f61d9af/df76c2e2987142bd954506ff09f77e2e/FLAG703cd9bb0 [2021-05-06 01:06:56,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f61d9af/df76c2e2987142bd954506ff09f77e2e [2021-05-06 01:06:56,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 01:06:56,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 01:06:56,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 01:06:56,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 01:06:56,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 01:06:56,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a364c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56, skipping insertion in model container [2021-05-06 01:06:56,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 01:06:56,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 01:06:56,377 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-zilu/benchmark52_polynomial.i[872,885] [2021-05-06 01:06:56,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 01:06:56,398 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 01:06:56,417 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-zilu/benchmark52_polynomial.i[872,885] [2021-05-06 01:06:56,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 01:06:56,442 INFO L208 MainTranslator]: Completed translation [2021-05-06 01:06:56,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56 WrapperNode [2021-05-06 01:06:56,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 01:06:56,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 01:06:56,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 01:06:56,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 01:06:56,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (1/1) ... [2021-05-06 01:06:56,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 01:06:56,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 01:06:56,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 01:06:56,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 01:06:56,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (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 [2021-05-06 01:06:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 01:06:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 01:06:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 01:06:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 01:06:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 01:06:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 01:06:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 01:06:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 01:06:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 01:06:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 01:06:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 01:06:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-05-06 01:06:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 01:06:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 01:06:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 01:06:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 01:06:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 01:06:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 01:06:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 01:06:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 01:06:56,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 01:06:56,831 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 01:06:56,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 01:06:56 BoogieIcfgContainer [2021-05-06 01:06:56,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 01:06:56,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 01:06:56,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 01:06:56,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 01:06:56,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 01:06:56" (1/3) ... [2021-05-06 01:06:56,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6488b9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 01:06:56, skipping insertion in model container [2021-05-06 01:06:56,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 01:06:56" (2/3) ... [2021-05-06 01:06:56,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6488b9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 01:06:56, skipping insertion in model container [2021-05-06 01:06:56,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 01:06:56" (3/3) ... [2021-05-06 01:06:56,840 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.i [2021-05-06 01:06:56,845 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-06 01:06:56,849 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 01:06:56,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 01:06:56,890 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 01:06:56,891 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 01:06:56,891 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-06 01:06:56,891 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 01:06:56,891 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 01:06:56,891 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 01:06:56,891 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 01:06:56,891 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 01:06:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 01:06:56,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-06 01:06:56,925 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 01:06:56,925 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 01:06:56,926 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 01:06:56,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 01:06:56,930 INFO L82 PathProgramCache]: Analyzing trace with hash -304977768, now seen corresponding path program 1 times [2021-05-06 01:06:56,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 01:06:56,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743492626] [2021-05-06 01:06:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 01:06:57,072 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 01:06:57,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538220653] [2021-05-06 01:06:57,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 01:06:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 01:06:57,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-05-06 01:06:57,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 01:06:57,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 01:06:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 01:06:57,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 01:06:57,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743492626] [2021-05-06 01:06:57,326 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 01:06:57,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538220653] [2021-05-06 01:06:57,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538220653] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 01:06:57,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 01:06:57,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 01:06:57,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978260133] [2021-05-06 01:06:57,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 01:06:57,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 01:06:57,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 01:06:57,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 01:06:57,346 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 01:06:57,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 01:06:57,384 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-05-06 01:06:57,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 01:06:57,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 12 [2021-05-06 01:06:57,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 01:06:57,392 INFO L225 Difference]: With dead ends: 33 [2021-05-06 01:06:57,392 INFO L226 Difference]: Without dead ends: 14 [2021-05-06 01:06:57,395 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 01:06:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-06 01:06:57,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-06 01:06:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 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) [2021-05-06 01:06:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-06 01:06:57,427 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-05-06 01:06:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 01:06:57,427 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-06 01:06:57,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 01:06:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-06 01:06:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-06 01:06:57,429 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 01:06:57,430 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 01:06:57,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-05-06 01:06:57,645 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 01:06:57,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 01:06:57,646 INFO L82 PathProgramCache]: Analyzing trace with hash -828987386, now seen corresponding path program 1 times [2021-05-06 01:06:57,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 01:06:57,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091541302] [2021-05-06 01:06:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 01:06:57,659 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 01:06:57,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815071267] [2021-05-06 01:06:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 01:06:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 01:06:57,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-06 01:06:57,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 01:06:57,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 01:06:57,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 01:06:57,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 01:06:57,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 01:06:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 01:06:57,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 01:06:57,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091541302] [2021-05-06 01:06:57,877 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 01:06:57,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815071267] [2021-05-06 01:06:57,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815071267] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 01:06:57,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 01:06:57,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-06 01:06:57,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230484585] [2021-05-06 01:06:57,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 01:06:57,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 01:06:57,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 01:06:57,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-06 01:06:57,880 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 01:06:57,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 01:06:57,912 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-05-06 01:06:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 01:06:57,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 2 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 13 [2021-05-06 01:06:57,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 01:06:57,913 INFO L225 Difference]: With dead ends: 14 [2021-05-06 01:06:57,913 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 01:06:57,914 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.6ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-06 01:06:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 01:06:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 01:06:57,914 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) [2021-05-06 01:06:57,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 01:06:57,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-05-06 01:06:57,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 01:06:57,915 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 01:06:57,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 01:06:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 01:06:57,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 01:06:58,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 01:06:58,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 01:06:58,174 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2021-05-06 01:06:58,175 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 11) no Hoare annotation was computed. [2021-05-06 01:06:58,175 INFO L198 CegarLoopUtils]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-05-06 01:06:58,175 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-05-06 01:06:58,175 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2021-05-06 01:06:58,175 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-05-06 01:06:58,175 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-05-06 01:06:58,175 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 01:06:58,176 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 01:06:58,176 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-05-06 01:06:58,176 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 19 27) the Hoare annotation is: true [2021-05-06 01:06:58,176 INFO L198 CegarLoopUtils]: For program point L25(line 25) no Hoare annotation was computed. [2021-05-06 01:06:58,176 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 19 27) no Hoare annotation was computed. [2021-05-06 01:06:58,176 INFO L198 CegarLoopUtils]: For program point L21(line 21) no Hoare annotation was computed. [2021-05-06 01:06:58,176 INFO L194 CegarLoopUtils]: At program point L22-2(lines 22 24) the Hoare annotation is: (or (and (< main_~i~0 11) (< 0 (+ main_~i~0 9))) (and (< 0 (+ main_~i~0 10)) (< main_~i~0 10))) [2021-05-06 01:06:58,176 INFO L194 CegarLoopUtils]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (< main_~i~0 11) (<= 100 (* main_~i~0 main_~i~0)) (< 0 (+ main_~i~0 9))) [2021-05-06 01:06:58,177 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 19 27) no Hoare annotation was computed. [2021-05-06 01:06:58,177 INFO L198 CegarLoopUtils]: For program point L16(line 16) no Hoare annotation was computed. [2021-05-06 01:06:58,177 INFO L198 CegarLoopUtils]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-05-06 01:06:58,177 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2021-05-06 01:06:58,177 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 18) no Hoare annotation was computed. [2021-05-06 01:06:58,177 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 14 18) no Hoare annotation was computed. [2021-05-06 01:06:58,177 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-05-06 01:06:58,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 01:06:58 BoogieIcfgContainer [2021-05-06 01:06:58,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 01:06:58,191 INFO L168 Benchmark]: Toolchain (without parser) took 1960.18 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 102.2 MB in the end (delta: 60.1 MB). Peak memory consumption was 59.7 MB. Max. memory is 8.0 GB. [2021-05-06 01:06:58,191 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 199.2 MB. Free memory is still 179.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 01:06:58,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.08 ms. Allocated memory is still 199.2 MB. Free memory was 162.1 MB in the beginning and 180.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-05-06 01:06:58,192 INFO L168 Benchmark]: Boogie Preprocessor took 47.35 ms. Allocated memory is still 199.2 MB. Free memory was 180.8 MB in the beginning and 179.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 01:06:58,193 INFO L168 Benchmark]: RCFGBuilder took 339.79 ms. Allocated memory is still 199.2 MB. Free memory was 179.3 MB in the beginning and 165.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-06 01:06:58,193 INFO L168 Benchmark]: TraceAbstraction took 1356.01 ms. Allocated memory is still 199.2 MB. Free memory was 165.6 MB in the beginning and 102.2 MB in the end (delta: 63.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-05-06 01:06:58,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 199.2 MB. Free memory is still 179.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 209.08 ms. Allocated memory is still 199.2 MB. Free memory was 162.1 MB in the beginning and 180.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.35 ms. Allocated memory is still 199.2 MB. Free memory was 180.8 MB in the beginning and 179.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 339.79 ms. Allocated memory is still 199.2 MB. Free memory was 179.3 MB in the beginning and 165.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1356.01 ms. Allocated memory is still 199.2 MB. Free memory was 165.6 MB in the beginning and 102.2 MB in the end (delta: 63.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1253.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.6ms, AutomataDifference: 96.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 32.9ms, InitialAbstractionConstructionTime: 26.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28 SDtfs, 2 SDslu, 43 SDs, 0 SdLazy, 25 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 69.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: 19.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 38 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 8.2ms HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 19.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 18.6ms SsaConstructionTime, 49.2ms SatisfiabilityAnalysisTime, 316.5ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 2 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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: 22]: Loop Invariant Derived loop invariant: (i < 11 && 0 < i + 9) || (0 < i + 10 && i < 10) RESULT: Ultimate proved your program to be correct! Received shutdown request...