/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:41:22,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:41:22,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:41:22,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:41:22,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:41:22,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:41:22,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:41:22,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:41:22,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:41:22,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:41:22,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:41:22,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:41:22,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:41:22,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:41:22,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:41:22,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:41:22,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:41:22,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:41:22,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:41:22,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:41:22,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:41:22,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:41:22,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:41:22,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:41:22,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 22:41:22,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 22:41:22,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 22:41:22,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 22:41:22,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 22:41:22,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 22:41:22,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 22:41:22,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 22:41:22,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 22:41:22,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 22:41:22,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 22:41:22,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 22:41:22,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 22:41:22,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 22:41:22,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:41:22,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:41:22,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:41:22,682 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 [2020-07-21 22:41:22,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:41:22,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:41:22,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:41:22,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:41:22,699 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:41:22,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:41:22,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:41:22,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:41:22,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:41:22,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:41:22,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:41:22,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:41:22,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:41:22,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:41:22,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:41:22,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:41:22,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:41:22,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:41:22,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:41:22,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:41:22,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:41:22,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:41:22,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:41:22,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:41:22,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:41:22,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:41:22,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:22,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:41:22,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:41:22,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:41:22,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:41:23,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:41:23,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:41:23,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:41:23,008 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:41:23,009 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2020-07-21 22:41:23,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c871ed8e7/2d54a82480f744459432a6ad5135bf26/FLAGe5d658398 [2020-07-21 22:41:23,657 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:41:23,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test14.c [2020-07-21 22:41:23,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c871ed8e7/2d54a82480f744459432a6ad5135bf26/FLAGe5d658398 [2020-07-21 22:41:23,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c871ed8e7/2d54a82480f744459432a6ad5135bf26 [2020-07-21 22:41:23,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:41:23,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:41:23,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:41:23,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:41:23,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:41:24,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:41:23" (1/1) ... [2020-07-21 22:41:24,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518c2b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24, skipping insertion in model container [2020-07-21 22:41:24,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:41:23" (1/1) ... [2020-07-21 22:41:24,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:41:24,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:41:24,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:41:24,220 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:41:24,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:41:24,252 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:41:24,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24 WrapperNode [2020-07-21 22:41:24,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:41:24,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:41:24,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:41:24,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:41:24,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (1/1) ... [2020-07-21 22:41:24,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:41:24,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:41:24,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:41:24,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:41:24,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (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 [2020-07-21 22:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-07-21 22:41:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-21 22:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-07-21 22:41:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:41:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 22:41:24,822 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:41:24,823 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:41:24,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:41:24 BoogieIcfgContainer [2020-07-21 22:41:24,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:41:24,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:41:24,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:41:24,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:41:24,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:41:23" (1/3) ... [2020-07-21 22:41:24,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dc9143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:41:24, skipping insertion in model container [2020-07-21 22:41:24,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:24" (2/3) ... [2020-07-21 22:41:24,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dc9143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:41:24, skipping insertion in model container [2020-07-21 22:41:24,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:41:24" (3/3) ... [2020-07-21 22:41:24,839 INFO L109 eAbstractionObserver]: Analyzing ICFG test14.c [2020-07-21 22:41:24,852 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:41:24,861 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:41:24,875 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:41:24,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:41:24,901 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:41:24,901 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:41:24,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:41:24,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:41:24,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:41:24,902 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:41:24,902 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:41:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-21 22:41:24,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 22:41:24,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:41:24,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:41:24,930 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:41:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:41:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash 521841741, now seen corresponding path program 1 times [2020-07-21 22:41:24,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:41:24,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233516074] [2020-07-21 22:41:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:25,087 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:41:25,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:41:25,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 22:41:25,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:41:25,191 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:41:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:41:25,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:41:25,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233516074] [2020-07-21 22:41:25,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:41:25,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:41:25,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759611507] [2020-07-21 22:41:25,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:41:25,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:41:25,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:41:25,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:41:25,246 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2020-07-21 22:41:25,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:41:25,358 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-07-21 22:41:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:41:25,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-21 22:41:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:41:25,379 INFO L225 Difference]: With dead ends: 29 [2020-07-21 22:41:25,380 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 22:41:25,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:41:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 22:41:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-21 22:41:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-21 22:41:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-07-21 22:41:25,448 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2020-07-21 22:41:25,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:41:25,449 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-07-21 22:41:25,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:41:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-07-21 22:41:25,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-21 22:41:25,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:41:25,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:41:25,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:25,667 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:41:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:41:25,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1019657549, now seen corresponding path program 1 times [2020-07-21 22:41:25,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:41:25,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715793752] [2020-07-21 22:41:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:25,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:41:25,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:41:25,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 22:41:25,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:41:25,778 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:41:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:41:25,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:41:25,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715793752] [2020-07-21 22:41:25,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:41:25,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:41:25,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228954412] [2020-07-21 22:41:25,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:41:25,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:41:25,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:41:25,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:41:25,793 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2020-07-21 22:41:25,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:41:25,836 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-07-21 22:41:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:41:25,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-21 22:41:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:41:25,838 INFO L225 Difference]: With dead ends: 18 [2020-07-21 22:41:25,838 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:41:25,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:41:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:41:25,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:41:25,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:41:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:41:25,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-21 22:41:25,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:41:25,841 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:41:25,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:41:25,841 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:41:25,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:41:26,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:26,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:41:26,156 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:41:26,157 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:41:26,157 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:41:26,157 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 7 10) no Hoare annotation was computed. [2020-07-21 22:41:26,157 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-07-21 22:41:26,158 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-07-21 22:41:26,158 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed. [2020-07-21 22:41:26,158 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:41:26,158 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (< 0 |#StackHeapBarrier|) [2020-07-21 22:41:26,158 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:41:26,159 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:41:26,159 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2020-07-21 22:41:26,159 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2020-07-21 22:41:26,159 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 27) no Hoare annotation was computed. [2020-07-21 22:41:26,160 INFO L264 CegarLoopResult]: At program point L20(lines 12 27) the Hoare annotation is: (not (< 0 |#StackHeapBarrier|)) [2020-07-21 22:41:26,160 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-07-21 22:41:26,160 INFO L268 CegarLoopResult]: For program point L18(lines 18 19) no Hoare annotation was computed. [2020-07-21 22:41:26,160 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (or (<= 2 main_~pc~0.base) (not (< 0 |#StackHeapBarrier|))) [2020-07-21 22:41:26,161 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-07-21 22:41:26,161 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-07-21 22:41:26,161 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2020-07-21 22:41:26,161 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 27) no Hoare annotation was computed. [2020-07-21 22:41:26,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 22:41:26,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 22:41:26,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:41:26 BoogieIcfgContainer [2020-07-21 22:41:26,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:41:26,188 INFO L168 Benchmark]: Toolchain (without parser) took 2194.30 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 102.6 MB in the end (delta: -616.0 kB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:26,189 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-21 22:41:26,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.17 ms. Allocated memory is still 137.9 MB. Free memory was 101.5 MB in the beginning and 91.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:26,191 INFO L168 Benchmark]: Boogie Preprocessor took 125.37 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.2 MB in the beginning and 180.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:26,192 INFO L168 Benchmark]: RCFGBuilder took 448.41 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 164.1 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:26,193 INFO L168 Benchmark]: TraceAbstraction took 1354.61 ms. Allocated memory is still 202.4 MB. Free memory was 164.1 MB in the beginning and 102.6 MB in the end (delta: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:26,198 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.17 ms. Allocated memory is still 137.9 MB. Free memory was 101.5 MB in the beginning and 91.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.37 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 91.2 MB in the beginning and 180.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.41 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 164.1 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1354.61 ms. Allocated memory is still 202.4 MB. Free memory was 164.1 MB in the beginning and 102.6 MB in the end (delta: 61.5 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant [2020-07-21 22:41:26,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 22:41:26,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: !(0 < unknown-#StackHeapBarrier-unknown) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 32 SDslu, 63 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 19 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 858 SizeOfPredicates, 12 NumberOfNonLiveVariables, 232 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...