/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:45:29,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:45:29,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:45:29,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 09:45:29,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 09:45:29,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 09:45:29,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 09:45:29,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 09:45:29,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 09:45:29,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 09:45:29,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 09:45:29,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 09:45:29,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:45:29,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:45:29,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:45:29,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:45:29,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:45:29,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:45:29,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:45:29,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:45:29,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:45:29,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:45:29,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:45:29,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:45:29,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 09:45:29,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 09:45:29,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 09:45:29,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 09:45:29,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 09:45:29,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 09:45:29,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 09:45:29,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 09:45:29,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 09:45:29,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:45:29,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:45:29,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:45:29,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:45:29,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:45:29,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:45:29,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:45:29,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:45:29,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:45:29,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:45:29,963 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:45:29,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:45:29,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:45:29,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:45:29,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:45:29,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:45:29,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:45:29,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:45:29,964 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:45:29,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:45:29,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:45:29,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:45:29,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:45:29,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:45:29,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:45:29,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:45:29,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:45:29,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:45:29,967 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:45:29,967 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:45:30,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:45:30,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:45:30,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:45:30,174 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:45:30,176 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:45:30,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c [2022-01-10 09:45:30,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6050cd9/f15a0d28c82c44e9a037cfd8a96d08c2/FLAG68a3bcb38 [2022-01-10 09:45:30,596 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:45:30,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c [2022-01-10 09:45:30,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6050cd9/f15a0d28c82c44e9a037cfd8a96d08c2/FLAG68a3bcb38 [2022-01-10 09:45:30,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6050cd9/f15a0d28c82c44e9a037cfd8a96d08c2 [2022-01-10 09:45:30,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:45:30,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:45:30,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:45:30,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:45:30,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:45:30,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225937a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30, skipping insertion in model container [2022-01-10 09:45:30,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:45:30,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:45:30,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c[322,335] [2022-01-10 09:45:30,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:45:30,792 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:45:30,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/diff-3-n-u.c[322,335] [2022-01-10 09:45:30,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:45:30,815 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:45:30,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30 WrapperNode [2022-01-10 09:45:30,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:45:30,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:45:30,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:45:30,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:45:30,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,854 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2022-01-10 09:45:30,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:45:30,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:45:30,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:45:30,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:45:30,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:45:30,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:45:30,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:45:30,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:45:30,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (1/1) ... [2022-01-10 09:45:30,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:45:30,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:30,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 09:45:30,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 09:45:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:45:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:45:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 09:45:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 09:45:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:45:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:45:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 09:45:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 09:45:31,009 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:45:31,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:45:32,064 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:45:32,068 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:45:32,068 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-01-10 09:45:32,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:45:32 BoogieIcfgContainer [2022-01-10 09:45:32,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:45:32,070 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:45:32,070 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:45:32,071 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:45:32,073 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:45:32" (1/1) ... [2022-01-10 09:45:32,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:45:32 BasicIcfg [2022-01-10 09:45:32,178 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:45:32,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:45:32,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:45:32,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:45:32,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:45:30" (1/4) ... [2022-01-10 09:45:32,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4aa2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:45:32, skipping insertion in model container [2022-01-10 09:45:32,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:45:30" (2/4) ... [2022-01-10 09:45:32,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4aa2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:45:32, skipping insertion in model container [2022-01-10 09:45:32,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:45:32" (3/4) ... [2022-01-10 09:45:32,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4aa2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:45:32, skipping insertion in model container [2022-01-10 09:45:32,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:45:32" (4/4) ... [2022-01-10 09:45:32,183 INFO L111 eAbstractionObserver]: Analyzing ICFG diff-3-n-u.cTransformedIcfg [2022-01-10 09:45:32,186 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:45:32,186 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 09:45:32,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:45:32,215 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 09:45:32,216 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 09:45:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.8) internal successors, (45), 26 states have internal predecessors, (45), 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) [2022-01-10 09:45:32,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 09:45:32,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:45:32,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:45:32,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:45:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:45:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1070958566, now seen corresponding path program 1 times [2022-01-10 09:45:32,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:45:32,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542573678] [2022-01-10 09:45:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:32,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:45:32,306 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:45:32,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1411246237] [2022-01-10 09:45:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:32,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:32,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:32,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:45:32,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 09:45:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:45:32,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 09:45:32,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:45:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:45:32,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:45:32,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:45:32,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542573678] [2022-01-10 09:45:32,504 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:45:32,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411246237] [2022-01-10 09:45:32,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411246237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:45:32,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:45:32,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:45:32,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227771710] [2022-01-10 09:45:32,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:45:32,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:45:32,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:45:32,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:45:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:45:32,532 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.8) internal successors, (45), 26 states have internal predecessors, (45), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-01-10 09:45:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:45:32,548 INFO L93 Difference]: Finished difference Result 52 states and 88 transitions. [2022-01-10 09:45:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:45:32,550 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2022-01-10 09:45:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:45:32,554 INFO L225 Difference]: With dead ends: 52 [2022-01-10 09:45:32,554 INFO L226 Difference]: Without dead ends: 23 [2022-01-10 09:45:32,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:45:32,560 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:45:32,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:45:32,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-10 09:45:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-10 09:45:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2022-01-10 09:45:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-01-10 09:45:32,588 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 11 [2022-01-10 09:45:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:45:32,589 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-01-10 09:45:32,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-01-10 09:45:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-01-10 09:45:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 09:45:32,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:45:32,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:45:32,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 09:45:32,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-01-10 09:45:32,808 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:45:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:45:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1416554267, now seen corresponding path program 1 times [2022-01-10 09:45:32,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:45:32,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718728265] [2022-01-10 09:45:32,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:32,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:45:32,869 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:45:32,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194401627] [2022-01-10 09:45:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:32,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:32,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:32,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:45:32,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 09:45:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:45:33,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 09:45:33,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:45:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:45:33,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:45:33,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:45:33,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718728265] [2022-01-10 09:45:33,238 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:45:33,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194401627] [2022-01-10 09:45:33,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194401627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:45:33,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:45:33,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 09:45:33,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861700044] [2022-01-10 09:45:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:45:33,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 09:45:33,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:45:33,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 09:45:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:45:33,249 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-01-10 09:45:36,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:38,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:45:38,599 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2022-01-10 09:45:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 09:45:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Word has length 11 [2022-01-10 09:45:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:45:38,607 INFO L225 Difference]: With dead ends: 61 [2022-01-10 09:45:38,608 INFO L226 Difference]: Without dead ends: 42 [2022-01-10 09:45:38,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:45:38,609 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 27 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-10 09:45:38,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 56 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-01-10 09:45:38,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-10 09:45:38,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 25. [2022-01-10 09:45:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 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) [2022-01-10 09:45:38,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2022-01-10 09:45:38,612 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 11 [2022-01-10 09:45:38,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:45:38,613 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2022-01-10 09:45:38,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-01-10 09:45:38,613 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-01-10 09:45:38,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 09:45:38,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:45:38,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:45:38,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 09:45:38,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-01-10 09:45:38,814 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:45:38,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:45:38,814 INFO L85 PathProgramCache]: Analyzing trace with hash 326017175, now seen corresponding path program 1 times [2022-01-10 09:45:38,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:45:38,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572587024] [2022-01-10 09:45:38,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:38,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:45:38,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:45:38,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399352017] [2022-01-10 09:45:38,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:38,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:38,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:38,859 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:45:38,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 09:45:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:45:38,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 09:45:38,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:45:39,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 09:45:39,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:45:39,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:45:39,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572587024] [2022-01-10 09:45:39,105 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:45:39,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399352017] [2022-01-10 09:45:39,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399352017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:45:39,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:45:39,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 09:45:39,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739212341] [2022-01-10 09:45:39,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:45:39,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 09:45:39,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:45:39,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 09:45:39,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:45:39,106 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-01-10 09:45:41,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:44,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:45:44,037 INFO L93 Difference]: Finished difference Result 73 states and 100 transitions. [2022-01-10 09:45:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 09:45:44,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) Word has length 17 [2022-01-10 09:45:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:45:44,038 INFO L225 Difference]: With dead ends: 73 [2022-01-10 09:45:44,038 INFO L226 Difference]: Without dead ends: 39 [2022-01-10 09:45:44,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:45:44,039 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 23 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-10 09:45:44,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 51 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-01-10 09:45:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-01-10 09:45:44,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2022-01-10 09:45:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2022-01-10 09:45:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-01-10 09:45:44,043 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 17 [2022-01-10 09:45:44,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:45:44,043 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-01-10 09:45:44,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-01-10 09:45:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-01-10 09:45:44,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 09:45:44,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:45:44,044 INFO L514 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] [2022-01-10 09:45:44,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 09:45:44,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:44,252 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:45:44,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:45:44,252 INFO L85 PathProgramCache]: Analyzing trace with hash 327718808, now seen corresponding path program 1 times [2022-01-10 09:45:44,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:45:44,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764603051] [2022-01-10 09:45:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:44,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:45:44,275 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:45:44,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962559281] [2022-01-10 09:45:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:44,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:44,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:44,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:45:44,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 09:45:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:45:44,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 09:45:44,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:45:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 09:45:44,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:45:44,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:45:44,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764603051] [2022-01-10 09:45:44,545 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:45:44,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962559281] [2022-01-10 09:45:44,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962559281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:45:44,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:45:44,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 09:45:44,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190762302] [2022-01-10 09:45:44,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:45:44,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 09:45:44,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:45:44,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 09:45:44,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:45:44,548 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-01-10 09:45:46,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:48,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:45:49,082 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2022-01-10 09:45:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 09:45:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) Word has length 23 [2022-01-10 09:45:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:45:49,085 INFO L225 Difference]: With dead ends: 74 [2022-01-10 09:45:49,085 INFO L226 Difference]: Without dead ends: 42 [2022-01-10 09:45:49,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:45:49,086 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 40 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-10 09:45:49,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 64 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-10 09:45:49,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-10 09:45:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2022-01-10 09:45:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 33 states have internal predecessors, (44), 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) [2022-01-10 09:45:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-01-10 09:45:49,090 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 23 [2022-01-10 09:45:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:45:49,090 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-01-10 09:45:49,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-01-10 09:45:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-01-10 09:45:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 09:45:49,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:45:49,091 INFO L514 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] [2022-01-10 09:45:49,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 09:45:49,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:49,310 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:45:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:45:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 714889590, now seen corresponding path program 1 times [2022-01-10 09:45:49,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:45:49,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327258365] [2022-01-10 09:45:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:49,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:45:49,330 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:45:49,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476334504] [2022-01-10 09:45:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:49,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:49,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:49,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:45:49,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 09:45:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:45:49,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-10 09:45:49,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:45:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 09:45:49,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:45:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 09:45:50,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:45:50,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327258365] [2022-01-10 09:45:50,521 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:45:50,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476334504] [2022-01-10 09:45:50,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476334504] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:45:50,522 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 09:45:50,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-01-10 09:45:50,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700236059] [2022-01-10 09:45:50,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 09:45:50,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 09:45:50,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:45:50,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 09:45:50,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 09:45:50,523 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-01-10 09:45:52,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:54,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:56,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:45:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:45:56,848 INFO L93 Difference]: Finished difference Result 107 states and 149 transitions. [2022-01-10 09:45:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 09:45:56,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) Word has length 25 [2022-01-10 09:45:56,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:45:56,850 INFO L225 Difference]: With dead ends: 107 [2022-01-10 09:45:56,851 INFO L226 Difference]: Without dead ends: 75 [2022-01-10 09:45:56,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2022-01-10 09:45:56,852 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 100 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:45:56,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 54 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-01-10 09:45:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-01-10 09:45:56,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2022-01-10 09:45:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 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) [2022-01-10 09:45:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2022-01-10 09:45:56,862 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 25 [2022-01-10 09:45:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:45:56,862 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2022-01-10 09:45:56,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-01-10 09:45:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2022-01-10 09:45:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 09:45:56,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:45:56,863 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:45:56,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-10 09:45:57,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:57,066 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:45:57,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:45:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2110663412, now seen corresponding path program 2 times [2022-01-10 09:45:57,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:45:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630333254] [2022-01-10 09:45:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:45:57,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:45:57,091 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:45:57,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958057416] [2022-01-10 09:45:57,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 09:45:57,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:45:57,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:45:57,093 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:45:57,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-10 09:45:57,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 09:45:57,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 09:45:57,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 09:45:57,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:45:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 09:45:57,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:45:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 09:45:57,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:45:57,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630333254] [2022-01-10 09:45:57,972 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:45:57,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958057416] [2022-01-10 09:45:57,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958057416] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:45:57,972 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 09:45:57,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-01-10 09:45:57,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499289824] [2022-01-10 09:45:57,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 09:45:57,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 09:45:57,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:45:57,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 09:45:57,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 09:45:57,973 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-01-10 09:46:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:46:00,175 INFO L93 Difference]: Finished difference Result 107 states and 140 transitions. [2022-01-10 09:46:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 09:46:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) Word has length 38 [2022-01-10 09:46:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:46:00,176 INFO L225 Difference]: With dead ends: 107 [2022-01-10 09:46:00,176 INFO L226 Difference]: Without dead ends: 53 [2022-01-10 09:46:00,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 09:46:00,177 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 26 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 09:46:00,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 95 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 40 Invalid, 0 Unknown, 10 Unchecked, 2.2s Time] [2022-01-10 09:46:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-01-10 09:46:00,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-01-10 09:46:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 46 states have internal predecessors, (59), 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) [2022-01-10 09:46:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2022-01-10 09:46:00,197 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 38 [2022-01-10 09:46:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:46:00,197 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 59 transitions. [2022-01-10 09:46:00,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-01-10 09:46:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2022-01-10 09:46:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 09:46:00,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:46:00,200 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:46:00,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-10 09:46:00,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:46:00,401 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:46:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:46:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash 98020079, now seen corresponding path program 3 times [2022-01-10 09:46:00,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:46:00,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048270222] [2022-01-10 09:46:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:46:00,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:46:00,436 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:46:00,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296280449] [2022-01-10 09:46:00,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 09:46:00,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:46:00,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:46:00,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:46:00,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-10 09:46:00,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-10 09:46:00,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 09:46:00,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 09:46:00,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:46:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-01-10 09:46:00,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:46:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-01-10 09:46:01,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:46:01,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048270222] [2022-01-10 09:46:01,335 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:46:01,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296280449] [2022-01-10 09:46:01,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296280449] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:46:01,335 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 09:46:01,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2022-01-10 09:46:01,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850172193] [2022-01-10 09:46:01,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 09:46:01,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 09:46:01,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:46:01,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 09:46:01,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 09:46:01,337 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) [2022-01-10 09:46:03,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:46:05,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:46:10,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:46:12,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:46:14,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:46:14,618 INFO L93 Difference]: Finished difference Result 172 states and 220 transitions. [2022-01-10 09:46:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 09:46:14,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) Word has length 41 [2022-01-10 09:46:14,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:46:14,620 INFO L225 Difference]: With dead ends: 172 [2022-01-10 09:46:14,620 INFO L226 Difference]: Without dead ends: 147 [2022-01-10 09:46:14,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-01-10 09:46:14,621 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 289 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-01-10 09:46:14,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 155 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2022-01-10 09:46:14,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-01-10 09:46:14,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 113. [2022-01-10 09:46:14,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 112 states have internal predecessors, (143), 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) [2022-01-10 09:46:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 143 transitions. [2022-01-10 09:46:14,646 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 143 transitions. Word has length 41 [2022-01-10 09:46:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:46:14,647 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 143 transitions. [2022-01-10 09:46:14,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) [2022-01-10 09:46:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 143 transitions. [2022-01-10 09:46:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 09:46:14,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:46:14,648 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:46:14,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-10 09:46:14,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:46:14,852 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:46:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:46:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash 269455797, now seen corresponding path program 4 times [2022-01-10 09:46:14,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:46:14,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896309960] [2022-01-10 09:46:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:46:14,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:46:14,910 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:46:14,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894711591] [2022-01-10 09:46:14,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-10 09:46:14,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:46:14,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:46:14,912 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:46:14,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-10 09:46:15,281 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-10 09:46:15,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 09:46:15,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 09:46:15,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:46:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 196 proven. 95 refuted. 10 times theorem prover too weak. 271 trivial. 0 not checked. [2022-01-10 09:46:38,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:46:41,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:46:41,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896309960] [2022-01-10 09:46:41,362 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:46:41,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894711591] [2022-01-10 09:46:41,362 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: at most one deprecated predicate [2022-01-10 09:46:41,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:46:41,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2022-01-10 09:46:41,362 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2022-01-10 09:46:41,362 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-01-10 09:46:41,366 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 09:46:41,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-10 09:46:41,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-01-10 09:46:41,578 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2022-01-10 09:46:41,579 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 09:46:41,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:46:41 BasicIcfg [2022-01-10 09:46:41,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 09:46:41,619 INFO L158 Benchmark]: Toolchain (without parser) took 71006.84ms. Allocated memory was 198.2MB in the beginning and 239.1MB in the end (delta: 40.9MB). Free memory was 144.6MB in the beginning and 211.2MB in the end (delta: -66.6MB). Peak memory consumption was 115.3MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,619 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 198.2MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 09:46:41,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.42ms. Allocated memory is still 198.2MB. Free memory was 144.4MB in the beginning and 170.9MB in the end (delta: -26.6MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.92ms. Allocated memory is still 198.2MB. Free memory was 170.9MB in the beginning and 168.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,619 INFO L158 Benchmark]: Boogie Preprocessor took 31.69ms. Allocated memory is still 198.2MB. Free memory was 168.9MB in the beginning and 167.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,619 INFO L158 Benchmark]: RCFGBuilder took 1182.36ms. Allocated memory is still 198.2MB. Free memory was 167.3MB in the beginning and 153.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,620 INFO L158 Benchmark]: IcfgTransformer took 107.92ms. Allocated memory is still 198.2MB. Free memory was 153.7MB in the beginning and 142.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,620 INFO L158 Benchmark]: TraceAbstraction took 69439.32ms. Allocated memory was 198.2MB in the beginning and 239.1MB in the end (delta: 40.9MB). Free memory was 141.6MB in the beginning and 211.2MB in the end (delta: -69.6MB). Peak memory consumption was 112.8MB. Max. memory is 8.0GB. [2022-01-10 09:46:41,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 198.2MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 202.42ms. Allocated memory is still 198.2MB. Free memory was 144.4MB in the beginning and 170.9MB in the end (delta: -26.6MB). Peak memory consumption was 6.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.92ms. Allocated memory is still 198.2MB. Free memory was 170.9MB in the beginning and 168.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.69ms. Allocated memory is still 198.2MB. Free memory was 168.9MB in the beginning and 167.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1182.36ms. Allocated memory is still 198.2MB. Free memory was 167.3MB in the beginning and 153.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * IcfgTransformer took 107.92ms. Allocated memory is still 198.2MB. Free memory was 153.7MB in the beginning and 142.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 69439.32ms. Allocated memory was 198.2MB in the beginning and 239.1MB in the end (delta: 40.9MB). Free memory was 141.6MB in the beginning and 211.2MB in the end (delta: -69.6MB). Peak memory consumption was 112.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L16] int i,j,k; [L17] int m=1000,n=1500,p=1800; [L18] unsigned int A [m][n][p]; [L19] unsigned int B [m][n][p]; [L20] unsigned int C [m][n][p]; [L25] i=0 [L26] j=0 [L27] k=0 [L28] COND TRUE i < m [L29] j=0 [L30] k=0 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND FALSE !(j < n) [L40] i=i+1 [L28] COND TRUE i < m [L29] j=0 [L30] k=0 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND FALSE !(j < n) [L40] i=i+1 [L28] COND TRUE i < m [L29] j=0 [L30] k=0 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND FALSE !(j < n) [L40] i=i+1 [L28] COND TRUE i < m [L29] j=0 [L30] k=0 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND TRUE j < n [L32] k=0 [L33] COND TRUE k < p [L34] A[i][j][k]= __VERIFIER_nondet_uint() [L35] B[i][j][k]= __VERIFIER_nondet_uint() [L36] k=k+1 [L33] COND FALSE !(k < p) [L38] j=j+1 [L31] COND FALSE !(j < n) [L40] i=i+1 [L28] COND FALSE !(i < m) [L45] i=0 [L46] j=0 [L47] k=0 [L48] COND TRUE i < m [L49] j=0 [L50] k=0 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND FALSE !(j < n) [L59] i=i+1 [L48] COND TRUE i < m [L49] j=0 [L50] k=0 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND FALSE !(j < n) [L59] i=i+1 [L48] COND TRUE i < m [L49] j=0 [L50] k=0 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND FALSE !(j < n) [L59] i=i+1 [L48] COND TRUE i < m [L49] j=0 [L50] k=0 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND TRUE j < n [L52] k=0 [L53] COND TRUE k < p [L54] EXPR A[i][j][k] [L54] EXPR B[i][j][k] [L54] C[i][j][k]=A[i][j][k]+B[i][j][k] [L55] k=k+1 [L53] COND FALSE !(k < p) [L57] j=j+1 [L51] COND FALSE !(j < n) [L59] i=i+1 [L48] COND FALSE !(i < m) [L65] i=0 [L66] j=0 [L67] k=0 [L68] COND TRUE i < m [L69] j=0 [L70] k=0 [L71] COND TRUE j < n [L72] k=0 [L73] COND TRUE k < p [L74] EXPR C[i][j][k] [L74] EXPR A[i][j][k] [L74] EXPR B[i][j][k] [L74] CALL __VERIFIER_assert(C[i][j][k]==A[i][j][k]+B[i][j][k]) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.4s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 36.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 36.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 510 SdHoareTripleChecker+Invalid, 35.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 185 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 185 mSolverCounterUnsat, 188 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=7, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 103 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 28.8s InterpolantComputationTime, 273 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 366 ConstructedInterpolants, 32 QuantifiedInterpolants, 5812 SizeOfPredicates, 26 NumberOfNonLiveVariables, 3649 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 659/778 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 could not prove your program: unable to determine feasibility of some traces [2022-01-10 09:46:41,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...