/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:18:21,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:18:21,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:18:21,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:18:21,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:18:21,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:18:21,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:18:21,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:18:21,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:18:21,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:18:21,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:18:21,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:18:21,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:18:21,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:18:21,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:18:21,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:18:21,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:18:21,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:18:21,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:18:21,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:18:21,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:18:21,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:18:21,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:18:21,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:18:21,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 03:18:21,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:18:21,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:18:21,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:18:21,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:18:21,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:18:21,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:18:21,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:18:21,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:18:21,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:18:21,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:18:21,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:18:21,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:18:21,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:18:21,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:18:21,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:18:21,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:18:21,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:18:21,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:18:21,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:18:21,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:18:21,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:18:21,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:18:21,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:18:21,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:18:21,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:18:21,740 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:18:21,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:18:22,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:18:22,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:18:22,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:18:22,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:18:22,043 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:18:22,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2021-05-01 03:18:22,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beff5cfba/f213f1aa99ee4d06b6a2bf1746bc6186/FLAG51b3b91a6 [2021-05-01 03:18:22,675 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:18:22,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2021-05-01 03:18:22,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beff5cfba/f213f1aa99ee4d06b6a2bf1746bc6186/FLAG51b3b91a6 [2021-05-01 03:18:23,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beff5cfba/f213f1aa99ee4d06b6a2bf1746bc6186 [2021-05-01 03:18:23,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:18:23,112 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:18:23,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:18:23,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:18:23,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:18:23,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@287326c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23, skipping insertion in model container [2021-05-01 03:18:23,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:18:23,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:18:23,514 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-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2021-05-01 03:18:23,536 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-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2021-05-01 03:18:23,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:18:23,557 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:18:23,646 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-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2021-05-01 03:18:23,661 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-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2021-05-01 03:18:23,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:18:23,682 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:18:23,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23 WrapperNode [2021-05-01 03:18:23,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:18:23,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:18:23,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:18:23,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:18:23,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (1/1) ... [2021-05-01 03:18:23,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:18:23,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:18:23,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:18:23,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:18:23,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (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 03:18:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:18:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:18:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:18:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:18:23,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:18:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:18:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:18:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:18:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:18:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:18:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:18:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 03:18:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:18:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:18:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:18:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:18:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:18:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:18:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:18:24,996 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:18:24,997 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-01 03:18:24,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:18:24 BoogieIcfgContainer [2021-05-01 03:18:24,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:18:24,999 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:18:24,999 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:18:24,999 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:18:25,002 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:18:24" (1/1) ... [2021-05-01 03:18:25,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:18:25 BasicIcfg [2021-05-01 03:18:25,028 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:18:25,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:18:25,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:18:25,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:18:25,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:18:23" (1/4) ... [2021-05-01 03:18:25,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26053432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:18:25, skipping insertion in model container [2021-05-01 03:18:25,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:18:23" (2/4) ... [2021-05-01 03:18:25,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26053432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:18:25, skipping insertion in model container [2021-05-01 03:18:25,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:18:24" (3/4) ... [2021-05-01 03:18:25,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26053432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:18:25, skipping insertion in model container [2021-05-01 03:18:25,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:18:25" (4/4) ... [2021-05-01 03:18:25,034 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.cJordan [2021-05-01 03:18:25,038 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:18:25,042 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-05-01 03:18:25,055 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-01 03:18:25,070 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:18:25,070 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:18:25,070 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:18:25,070 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:18:25,071 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:18:25,071 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:18:25,071 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:18:25,071 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:18:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 245 states have (on average 1.9714285714285715) internal successors, (483), 247 states have internal predecessors, (483), 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) [2021-05-01 03:18:25,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-05-01 03:18:25,107 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:18:25,108 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:18:25,108 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:18:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:18:25,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1372143926, now seen corresponding path program 1 times [2021-05-01 03:18:25,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:18:25,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832752565] [2021-05-01 03:18:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:18:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:18:25,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:25,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:18:25,505 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-05-01 03:18:25,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 03:18:25,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-05-01 03:18:25,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:25,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:18:25,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:25,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:18:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:18:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:18:25,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:25,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:18:25,593 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 03:18:25,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:18:25,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832752565] [2021-05-01 03:18:25,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832752565] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:18:25,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:18:25,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 03:18:25,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413289487] [2021-05-01 03:18:25,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 03:18:25,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:18:25,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 03:18:25,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-01 03:18:25,617 INFO L87 Difference]: Start difference. First operand has 252 states, 245 states have (on average 1.9714285714285715) internal successors, (483), 247 states have internal predecessors, (483), 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 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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) [2021-05-01 03:18:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:18:27,145 INFO L93 Difference]: Finished difference Result 263 states and 497 transitions. [2021-05-01 03:18:27,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 03:18:27,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 138 [2021-05-01 03:18:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:18:27,162 INFO L225 Difference]: With dead ends: 263 [2021-05-01 03:18:27,162 INFO L226 Difference]: Without dead ends: 253 [2021-05-01 03:18:27,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 255.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-01 03:18:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-05-01 03:18:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2021-05-01 03:18:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 242 states have (on average 1.1570247933884297) internal successors, (280), 242 states have internal predecessors, (280), 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) [2021-05-01 03:18:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2021-05-01 03:18:27,221 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2021-05-01 03:18:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:18:27,224 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2021-05-01 03:18:27,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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) [2021-05-01 03:18:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2021-05-01 03:18:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-05-01 03:18:27,233 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:18:27,233 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:18:27,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:18:27,234 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:18:27,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:18:27,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1813108825, now seen corresponding path program 1 times [2021-05-01 03:18:27,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:18:27,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688407693] [2021-05-01 03:18:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:18:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:18:27,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:27,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:18:27,390 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-05-01 03:18:27,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 03:18:27,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:27,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 03:18:27,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:27,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:18:27,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:27,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:18:27,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:18:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:18:27,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:18:27,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:18:27,458 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 03:18:27,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:18:27,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688407693] [2021-05-01 03:18:27,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688407693] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:18:27,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:18:27,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 03:18:27,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146792743] [2021-05-01 03:18:27,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 03:18:27,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:18:27,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 03:18:27,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-01 03:18:27,464 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) [2021-05-01 03:18:28,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:18:28,393 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2021-05-01 03:18:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 03:18:28,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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 139 [2021-05-01 03:18:28,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:18:28,394 INFO L225 Difference]: With dead ends: 256 [2021-05-01 03:18:28,395 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 03:18:28,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 279.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-01 03:18:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 03:18:28,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 03:18:28,396 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) [2021-05-01 03:18:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 03:18:28,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2021-05-01 03:18:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:18:28,396 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 03:18:28,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) [2021-05-01 03:18:28,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 03:18:28,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 03:18:28,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:18:28,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:18:28 BasicIcfg [2021-05-01 03:18:28,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:18:28,401 INFO L168 Benchmark]: Toolchain (without parser) took 5289.50 ms. Allocated memory was 180.4 MB in the beginning and 272.6 MB in the end (delta: 92.3 MB). Free memory was 143.9 MB in the beginning and 242.1 MB in the end (delta: -98.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:18:28,402 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 180.4 MB. Free memory is still 162.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:18:28,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.80 ms. Allocated memory is still 180.4 MB. Free memory was 143.7 MB in the beginning and 146.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:18:28,403 INFO L168 Benchmark]: Boogie Preprocessor took 110.82 ms. Allocated memory is still 180.4 MB. Free memory was 145.7 MB in the beginning and 141.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-05-01 03:18:28,403 INFO L168 Benchmark]: RCFGBuilder took 1203.08 ms. Allocated memory was 180.4 MB in the beginning and 218.1 MB in the end (delta: 37.7 MB). Free memory was 141.1 MB in the beginning and 178.0 MB in the end (delta: -36.8 MB). Peak memory consumption was 62.0 MB. Max. memory is 8.0 GB. [2021-05-01 03:18:28,404 INFO L168 Benchmark]: IcfgTransformer took 29.12 ms. Allocated memory is still 218.1 MB. Free memory was 178.0 MB in the beginning and 173.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 03:18:28,404 INFO L168 Benchmark]: TraceAbstraction took 3371.40 ms. Allocated memory was 218.1 MB in the beginning and 272.6 MB in the end (delta: 54.5 MB). Free memory was 173.2 MB in the beginning and 242.1 MB in the end (delta: -68.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:18:28,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 180.4 MB. Free memory is still 162.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 569.80 ms. Allocated memory is still 180.4 MB. Free memory was 143.7 MB in the beginning and 146.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.82 ms. Allocated memory is still 180.4 MB. Free memory was 145.7 MB in the beginning and 141.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1203.08 ms. Allocated memory was 180.4 MB in the beginning and 218.1 MB in the end (delta: 37.7 MB). Free memory was 141.1 MB in the beginning and 178.0 MB in the end (delta: -36.8 MB). Peak memory consumption was 62.0 MB. Max. memory is 8.0 GB. * IcfgTransformer took 29.12 ms. Allocated memory is still 218.1 MB. Free memory was 178.0 MB in the beginning and 173.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3371.40 ms. Allocated memory was 218.1 MB in the beginning and 272.6 MB in the end (delta: 54.5 MB). Free memory was 173.2 MB in the beginning and 242.1 MB in the end (delta: -68.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2003]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2312]: 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, 252 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3328.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 26.3ms, AutomataDifference: 2494.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 187 SDtfs, 1469 SDslu, 42 SDs, 0 SdLazy, 1973 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1554.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 535.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 47.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.4ms SsaConstructionTime, 137.8ms SatisfiabilityAnalysisTime, 479.0ms InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...