/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 06:07:27,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 06:07:27,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 06:07:27,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 06:07:27,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 06:07:27,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 06:07:27,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 06:07:27,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 06:07:27,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 06:07:27,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 06:07:27,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 06:07:27,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 06:07:27,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 06:07:27,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 06:07:27,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 06:07:27,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 06:07:27,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 06:07:27,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 06:07:27,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 06:07:27,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 06:07:27,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 06:07:27,813 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 06:07:27,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 06:07:27,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 06:07:27,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 06:07:27,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 06:07:27,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 06:07:27,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 06:07:27,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 06:07:27,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 06:07:27,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 06:07:27,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 06:07:27,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 06:07:27,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 06:07:27,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 06:07:27,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 06:07:27,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 06:07:27,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 06:07:27,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 06:07:27,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 06:07:27,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 06:07:27,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 06:07:27,819 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 06:07:27,819 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 06:07:28,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 06:07:28,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 06:07:28,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 06:07:28,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 06:07:28,109 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 06:07:28,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2021-05-06 06:07:28,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6862e6f59/d72ec85db09b47d998d42d42c6c8ad61/FLAG3822e3e31 [2021-05-06 06:07:28,542 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 06:07:28,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2021-05-06 06:07:28,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6862e6f59/d72ec85db09b47d998d42d42c6c8ad61/FLAG3822e3e31 [2021-05-06 06:07:28,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6862e6f59/d72ec85db09b47d998d42d42c6c8ad61 [2021-05-06 06:07:28,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 06:07:28,565 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 06:07:28,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 06:07:28,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 06:07:28,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 06:07:28,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de4f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28, skipping insertion in model container [2021-05-06 06:07:28,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 06:07:28,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 06:07:28,718 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1224,1237] [2021-05-06 06:07:28,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:07:28,728 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 06:07:28,768 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1224,1237] [2021-05-06 06:07:28,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:07:28,779 INFO L208 MainTranslator]: Completed translation [2021-05-06 06:07:28,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28 WrapperNode [2021-05-06 06:07:28,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 06:07:28,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 06:07:28,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 06:07:28,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 06:07:28,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (1/1) ... [2021-05-06 06:07:28,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 06:07:28,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 06:07:28,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 06:07:28,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 06:07:28,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (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 06:07:28,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 06:07:28,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 06:07:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 06:07:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 06:07:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 06:07:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 06:07:35,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 06:07:35,608 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-06 06:07:35,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:07:35 BoogieIcfgContainer [2021-05-06 06:07:35,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 06:07:35,609 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 06:07:35,610 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 06:07:35,610 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 06:07:35,612 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:07:35" (1/1) ... [2021-05-06 06:07:35,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:07:35 BasicIcfg [2021-05-06 06:07:35,621 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 06:07:35,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 06:07:35,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 06:07:35,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 06:07:35,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 06:07:28" (1/4) ... [2021-05-06 06:07:35,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0dc180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:07:35, skipping insertion in model container [2021-05-06 06:07:35,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:07:28" (2/4) ... [2021-05-06 06:07:35,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0dc180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:07:35, skipping insertion in model container [2021-05-06 06:07:35,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:07:35" (3/4) ... [2021-05-06 06:07:35,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0dc180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:07:35, skipping insertion in model container [2021-05-06 06:07:35,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:07:35" (4/4) ... [2021-05-06 06:07:35,625 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.cJordan [2021-05-06 06:07:35,629 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 06:07:35,631 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 06:07:35,642 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 06:07:35,654 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 06:07:35,654 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 06:07:35,654 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 06:07:35,655 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 06:07:35,655 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 06:07:35,655 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 06:07:35,655 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 06:07:35,655 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 06:07:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 06:07:35,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-06 06:07:35,667 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:07:35,667 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:07:35,668 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:07:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:07:35,671 INFO L82 PathProgramCache]: Analyzing trace with hash -963747291, now seen corresponding path program 1 times [2021-05-06 06:07:35,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:07:35,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134848415] [2021-05-06 06:07:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:07:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:35,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:35,903 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 06:07:35,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:35,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134848415] [2021-05-06 06:07:35,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134848415] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:07:35,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:07:35,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 06:07:35,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149286353] [2021-05-06 06:07:35,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 06:07:35,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:35,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 06:07:35,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 06:07:35,918 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:46,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:07:46,963 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-05-06 06:07:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 06:07:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-06 06:07:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:07:46,969 INFO L225 Difference]: With dead ends: 29 [2021-05-06 06:07:46,970 INFO L226 Difference]: Without dead ends: 20 [2021-05-06 06:07:46,970 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 108.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 06:07:46,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-06 06:07:46,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-05-06 06:07:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:46,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-05-06 06:07:46,990 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2021-05-06 06:07:46,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:07:46,990 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-05-06 06:07:46,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:46,990 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-05-06 06:07:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-06 06:07:46,991 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:07:46,991 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:07:46,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 06:07:46,991 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:07:46,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:07:46,992 INFO L82 PathProgramCache]: Analyzing trace with hash -92546851, now seen corresponding path program 1 times [2021-05-06 06:07:46,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:07:46,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401513623] [2021-05-06 06:07:46,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:07:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:47,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:47,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:47,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401513623] [2021-05-06 06:07:47,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401513623] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:07:47,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:07:47,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 06:07:47,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058736115] [2021-05-06 06:07:47,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 06:07:47,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:47,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 06:07:47,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 06:07:47,162 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:56,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:07:56,089 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2021-05-06 06:07:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 06:07:56,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-05-06 06:07:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:07:56,090 INFO L225 Difference]: With dead ends: 24 [2021-05-06 06:07:56,090 INFO L226 Difference]: Without dead ends: 22 [2021-05-06 06:07:56,091 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 343.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-06 06:07:56,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-05-06 06:07:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-05-06 06:07:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:56,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-05-06 06:07:56,093 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2021-05-06 06:07:56,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:07:56,093 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-05-06 06:07:56,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-05-06 06:07:56,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-06 06:07:56,094 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:07:56,094 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:07:56,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 06:07:56,094 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:07:56,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:07:56,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1782984991, now seen corresponding path program 1 times [2021-05-06 06:07:56,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:07:56,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945389674] [2021-05-06 06:07:56,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:07:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:56,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:56,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:56,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945389674] [2021-05-06 06:07:56,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945389674] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:07:56,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:07:56,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 06:07:56,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468591586] [2021-05-06 06:07:56,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 06:07:56,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:56,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 06:07:56,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 06:07:56,242 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:08:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:08:07,295 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-05-06 06:08:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 06:08:07,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-06 06:08:07,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:08:07,296 INFO L225 Difference]: With dead ends: 21 [2021-05-06 06:08:07,296 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 06:08:07,296 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 332.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-06 06:08:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 06:08:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 06:08:07,296 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 06:08:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 06:08:07,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-05-06 06:08:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:08:07,297 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 06:08:07,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:08:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 06:08:07,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 06:08:07,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 06:08:07,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:08:07 BasicIcfg [2021-05-06 06:08:07,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 06:08:07,301 INFO L168 Benchmark]: Toolchain (without parser) took 38735.62 ms. Allocated memory is still 181.4 MB. Free memory was 146.1 MB in the beginning and 87.4 MB in the end (delta: 58.7 MB). Peak memory consumption was 59.5 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:07,301 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 181.4 MB. Free memory is still 162.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 06:08:07,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.82 ms. Allocated memory is still 181.4 MB. Free memory was 146.0 MB in the beginning and 164.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:07,302 INFO L168 Benchmark]: Boogie Preprocessor took 33.06 ms. Allocated memory is still 181.4 MB. Free memory was 164.0 MB in the beginning and 162.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:07,302 INFO L168 Benchmark]: RCFGBuilder took 6794.87 ms. Allocated memory is still 181.4 MB. Free memory was 162.8 MB in the beginning and 147.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:07,303 INFO L168 Benchmark]: IcfgTransformer took 11.09 ms. Allocated memory is still 181.4 MB. Free memory was 147.6 MB in the beginning and 146.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:07,303 INFO L168 Benchmark]: TraceAbstraction took 31678.72 ms. Allocated memory is still 181.4 MB. Free memory was 146.0 MB in the beginning and 87.4 MB in the end (delta: 58.6 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:07,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 181.4 MB. Free memory is still 162.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 210.82 ms. Allocated memory is still 181.4 MB. Free memory was 146.0 MB in the beginning and 164.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.06 ms. Allocated memory is still 181.4 MB. Free memory was 164.0 MB in the beginning and 162.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 6794.87 ms. Allocated memory is still 181.4 MB. Free memory was 162.8 MB in the beginning and 147.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 11.09 ms. Allocated memory is still 181.4 MB. Free memory was 147.6 MB in the beginning and 146.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 31678.72 ms. Allocated memory is still 181.4 MB. Free memory was 146.0 MB in the beginning and 87.4 MB in the end (delta: 58.6 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 63]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31644.7ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 7.4ms, AutomataDifference: 31046.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 64 SDslu, 29 SDs, 0 SdLazy, 78 SolverSat, 11 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 28253.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 784.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.5ms SsaConstructionTime, 93.6ms SatisfiabilityAnalysisTime, 394.7ms InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...