/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 07:03:40,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 07:03:40,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 07:03:40,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 07:03:40,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 07:03:40,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 07:03:40,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 07:03:40,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 07:03:40,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 07:03:40,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 07:03:40,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 07:03:40,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 07:03:40,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 07:03:40,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 07:03:40,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 07:03:40,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 07:03:40,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 07:03:40,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 07:03:40,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 07:03:40,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 07:03:40,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 07:03:40,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 07:03:40,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 07:03:40,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 07:03:40,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 07:03:40,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 07:03:40,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 07:03:40,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 07:03:40,129 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 07:03:40,129 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 07:03:40,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 07:03:40,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 07:03:40,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 07:03:40,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 07:03:40,416 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 07:03:40,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2021-05-01 07:03:40,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342ec04a3/b6bf01e60d234bde9405f687dcc79ed7/FLAGdd842ba24 [2021-05-01 07:03:40,839 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 07:03:40,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2021-05-01 07:03:40,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342ec04a3/b6bf01e60d234bde9405f687dcc79ed7/FLAGdd842ba24 [2021-05-01 07:03:41,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342ec04a3/b6bf01e60d234bde9405f687dcc79ed7 [2021-05-01 07:03:41,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 07:03:41,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 07:03:41,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 07:03:41,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 07:03:41,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 07:03:41,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610d9c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41, skipping insertion in model container [2021-05-01 07:03:41,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 07:03:41,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 07:03:41,409 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-acceleration/functions_1-2.c[325,338] [2021-05-01 07:03:41,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:03:41,425 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 07:03:41,434 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-acceleration/functions_1-2.c[325,338] [2021-05-01 07:03:41,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:03:41,447 INFO L208 MainTranslator]: Completed translation [2021-05-01 07:03:41,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41 WrapperNode [2021-05-01 07:03:41,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 07:03:41,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 07:03:41,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 07:03:41,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 07:03:41,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (1/1) ... [2021-05-01 07:03:41,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 07:03:41,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 07:03:41,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 07:03:41,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 07:03:41,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (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 [2021-05-01 07:03:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 07:03:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 07:03:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 07:03:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 07:03:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-05-01 07:03:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 07:03:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 07:03:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 07:03:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 07:03:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 07:03:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 07:03:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-05-01 07:03:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 07:03:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 07:03:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 07:03:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 07:03:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 07:03:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 07:03:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 07:03:41,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 07:03:41,849 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 07:03:41,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:03:41 BoogieIcfgContainer [2021-05-01 07:03:41,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 07:03:41,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 07:03:41,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 07:03:41,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 07:03:41,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:03:41" (1/3) ... [2021-05-01 07:03:41,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a7b315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:03:41, skipping insertion in model container [2021-05-01 07:03:41,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:03:41" (2/3) ... [2021-05-01 07:03:41,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a7b315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:03:41, skipping insertion in model container [2021-05-01 07:03:41,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:03:41" (3/3) ... [2021-05-01 07:03:41,856 INFO L111 eAbstractionObserver]: Analyzing ICFG functions_1-2.c [2021-05-01 07:03:41,860 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 07:03:41,862 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 07:03:41,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 07:03:41,895 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 07:03:41,895 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 07:03:41,895 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 07:03:41,895 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 07:03:41,896 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 07:03:41,896 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 07:03:41,896 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 07:03:41,896 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 07:03:41,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 07:03:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 07:03:41,914 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:03:41,916 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:03:41,917 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:03:41,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:03:41,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1649640916, now seen corresponding path program 1 times [2021-05-01 07:03:41,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:03:41,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13565143] [2021-05-01 07:03:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:03:41,964 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:03:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:42,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:42,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:42,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:03:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:42,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:03:42,128 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:03:42,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13565143] [2021-05-01 07:03:42,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [13565143] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:03:42,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:03:42,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 07:03:42,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20490546] [2021-05-01 07:03:42,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 07:03:42,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:03:42,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 07:03:42,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 07:03:42,146 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-05-01 07:03:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:03:42,217 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-05-01 07:03:42,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 07:03:42,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2021-05-01 07:03:42,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:03:42,224 INFO L225 Difference]: With dead ends: 34 [2021-05-01 07:03:42,224 INFO L226 Difference]: Without dead ends: 17 [2021-05-01 07:03:42,227 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 07:03:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-01 07:03:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-01 07:03:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:03:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-05-01 07:03:42,265 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2021-05-01 07:03:42,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:03:42,265 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-05-01 07:03:42,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-05-01 07:03:42,266 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-05-01 07:03:42,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 07:03:42,266 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:03:42,267 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:03:42,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 07:03:42,267 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:03:42,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:03:42,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1655182042, now seen corresponding path program 1 times [2021-05-01 07:03:42,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:03:42,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464950902] [2021-05-01 07:03:42,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:03:42,274 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:03:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:42,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:42,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:03:42,341 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-05-01 07:03:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 07:03:42,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:42,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:03:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:42,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:03:42,402 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:03:42,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464950902] [2021-05-01 07:03:42,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1464950902] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:03:42,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:03:42,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 07:03:42,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092380795] [2021-05-01 07:03:42,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 07:03:42,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:03:42,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 07:03:42,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 07:03:42,404 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-05-01 07:03:42,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:03:42,513 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-05-01 07:03:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 07:03:42,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2021-05-01 07:03:42,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:03:42,515 INFO L225 Difference]: With dead ends: 25 [2021-05-01 07:03:42,515 INFO L226 Difference]: Without dead ends: 20 [2021-05-01 07:03:42,516 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 07:03:42,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-01 07:03:42,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-05-01 07:03:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:03:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-01 07:03:42,523 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2021-05-01 07:03:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:03:42,523 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-01 07:03:42,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-05-01 07:03:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-01 07:03:42,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 07:03:42,524 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:03:42,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:03:42,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 07:03:42,525 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:03:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:03:42,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1503524740, now seen corresponding path program 1 times [2021-05-01 07:03:42,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:03:42,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422202271] [2021-05-01 07:03:42,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:03:42,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:03:42,578 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< (mod v_main_~x~0_11 4294967296) 268435455) InVars {main_~x~0=v_main_~x~0_11} OutVars{main_~x~0=v_main_~x~0_11} AuxVars[] AssignedVars[] [2021-05-01 07:03:42,597 WARN L240 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size [2021-05-01 07:03:42,610 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,613 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,614 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,617 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,619 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,683 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:03:42,696 INFO L108 tifierPushTermWalker]: treesize reduction 13, result has 7.1 percent of original size [2021-05-01 07:03:42,703 INFO L108 tifierPushTermWalker]: treesize reduction 28, result has 3.4 percent of original size [2021-05-01 07:03:42,711 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,718 INFO L108 tifierPushTermWalker]: treesize reduction 13, result has 7.1 percent of original size [2021-05-01 07:03:42,719 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 07:03:42,738 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,745 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,751 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,757 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,782 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,783 WARN L245 tifierPushTermWalker]: treesize reduction 4, result has 93.8 percent of original size 61 [2021-05-01 07:03:42,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:42,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 07:03:42,846 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:03:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 07:03:42,878 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 07:03:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 07:03:42,916 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 07:03:42,930 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-05-01 07:03:42,930 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-05-01 07:03:42,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 07:03:42,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 07:03:42 BoogieIcfgContainer [2021-05-01 07:03:42,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 07:03:42,948 INFO L168 Benchmark]: Toolchain (without parser) took 1673.99 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 173.6 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 07:03:42,948 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 203.4 MB. Free memory is still 186.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 07:03:42,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.90 ms. Allocated memory is still 203.4 MB. Free memory was 170.0 MB in the beginning and 160.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 07:03:42,949 INFO L168 Benchmark]: Boogie Preprocessor took 67.26 ms. Allocated memory is still 203.4 MB. Free memory was 160.9 MB in the beginning and 187.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2021-05-01 07:03:42,949 INFO L168 Benchmark]: RCFGBuilder took 334.03 ms. Allocated memory is still 203.4 MB. Free memory was 187.8 MB in the beginning and 174.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 07:03:42,950 INFO L168 Benchmark]: TraceAbstraction took 1095.12 ms. Allocated memory is still 203.4 MB. Free memory was 173.6 MB in the beginning and 173.6 MB in the end (delta: 33.6 kB). Peak memory consumption was 24.0 kB. Max. memory is 8.0 GB. [2021-05-01 07:03:42,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 203.4 MB. Free memory is still 186.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 171.90 ms. Allocated memory is still 203.4 MB. Free memory was 170.0 MB in the beginning and 160.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.26 ms. Allocated memory is still 203.4 MB. Free memory was 160.9 MB in the beginning and 187.8 MB in the end (delta: -26.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 334.03 ms. Allocated memory is still 203.4 MB. Free memory was 187.8 MB in the beginning and 174.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1095.12 ms. Allocated memory is still 203.4 MB. Free memory was 173.6 MB in the beginning and 173.6 MB in the end (delta: 33.6 kB). Peak memory consumption was 24.0 kB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] unsigned int x = 0; [L19] COND TRUE x < 0x0fffffff [L20] CALL, EXPR f(x) [L13] return z + 2; [L20] RET, EXPR f(x) [L20] x = f(x) [L19] COND FALSE !(x < 0x0fffffff) [L23] CALL __VERIFIER_assert(x % 2) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1039.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 11.1ms, AutomataDifference: 204.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 24 SDslu, 11 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 124.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 33.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...