/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 12:01:14,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 12:01:14,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 12:01:14,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 12:01:14,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 12:01:14,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 12:01:14,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 12:01:14,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 12:01:14,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 12:01:14,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 12:01:14,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 12:01:14,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 12:01:14,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 12:01:14,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 12:01:14,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 12:01:14,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 12:01:14,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 12:01:14,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 12:01:14,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 12:01:14,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 12:01:14,146 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 12:01:14,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 12:01:14,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 12:01:14,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 12:01:14,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 12:01:14,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 12:01:14,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 12:01:14,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 12:01:14,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 12:01:14,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 12:01:14,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 12:01:14,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 12:01:14,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 12:01:14,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 12:01:14,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 12:01:14,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 12:01:14,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 12:01:14,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 12:01:14,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 12:01:14,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 12:01:14,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 12:01:14,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 12:01:14,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 12:01:14,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 12:01:14,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 12:01:14,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 12:01:14,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 12:01:14,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 12:01:14,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 12:01:14,178 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 12:01:14,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 12:01:14,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 12:01:14,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 12:01:14,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 12:01:14,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 12:01:14,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 12:01:14,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 12:01:14,180 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 12:01:14,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 12:01:14,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 12:01:14,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 12:01:14,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 12:01:14,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 12:01:14,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 12:01:14,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 12:01:14,182 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 12:01:14,182 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 12:01:14,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 12:01:14,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 12:01:14,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 12:01:14,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 12:01:14,402 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 12:01:14,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c [2022-04-06 12:01:14,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b3ad5e6/ad5c95c44c594ffcbbbd8085f3c4746d/FLAG1016d44c4 [2022-04-06 12:01:14,807 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 12:01:14,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c [2022-04-06 12:01:14,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b3ad5e6/ad5c95c44c594ffcbbbd8085f3c4746d/FLAG1016d44c4 [2022-04-06 12:01:15,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b3ad5e6/ad5c95c44c594ffcbbbd8085f3c4746d [2022-04-06 12:01:15,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 12:01:15,240 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 12:01:15,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 12:01:15,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 12:01:15,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 12:01:15,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3dcf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15, skipping insertion in model container [2022-04-06 12:01:15,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 12:01:15,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 12:01:15,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2022-04-06 12:01:15,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 12:01:15,411 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 12:01:15,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2022-04-06 12:01:15,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 12:01:15,431 INFO L208 MainTranslator]: Completed translation [2022-04-06 12:01:15,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15 WrapperNode [2022-04-06 12:01:15,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 12:01:15,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 12:01:15,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 12:01:15,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 12:01:15,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 12:01:15,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 12:01:15,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 12:01:15,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 12:01:15,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 12:01:15,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 12:01:15,486 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) [2022-04-06 12:01:15,488 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 [2022-04-06 12:01:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 12:01:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 12:01:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 12:01:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-06 12:01:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 12:01:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 12:01:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 12:01:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 12:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 12:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 12:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 12:01:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-06 12:01:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 12:01:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 12:01:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 12:01:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 12:01:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 12:01:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 12:01:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 12:01:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 12:01:15,563 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 12:01:15,564 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 12:01:15,699 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 12:01:15,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 12:01:15,703 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 12:01:15,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 12:01:15 BoogieIcfgContainer [2022-04-06 12:01:15,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 12:01:15,705 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 12:01:15,705 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 12:01:15,706 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 12:01:15,720 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 12:01:15" (1/1) ... [2022-04-06 12:01:15,722 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 12:01:15,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 12:01:15 BasicIcfg [2022-04-06 12:01:15,755 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 12:01:15,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 12:01:15,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 12:01:15,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 12:01:15,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 12:01:15" (1/4) ... [2022-04-06 12:01:15,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298f536c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 12:01:15, skipping insertion in model container [2022-04-06 12:01:15,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 12:01:15" (2/4) ... [2022-04-06 12:01:15,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298f536c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 12:01:15, skipping insertion in model container [2022-04-06 12:01:15,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 12:01:15" (3/4) ... [2022-04-06 12:01:15,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298f536c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 12:01:15, skipping insertion in model container [2022-04-06 12:01:15,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 12:01:15" (4/4) ... [2022-04-06 12:01:15,761 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound2.cqvasr [2022-04-06 12:01:15,765 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 12:01:15,765 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 12:01:15,806 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 12:01:15,814 INFO L340 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=FINITE_AUTOMATA, 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 [2022-04-06 12:01:15,814 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 12:01:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-06 12:01:15,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-06 12:01:15,845 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 12:01:15,845 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 12:01:15,846 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 12:01:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 12:01:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1450325676, now seen corresponding path program 1 times [2022-04-06 12:01:15,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 12:01:15,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139407159] [2022-04-06 12:01:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 12:01:15,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 12:01:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 12:01:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-06 12:01:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-06 12:01:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-04-06 12:01:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-04-06 12:01:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-06 12:01:16,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 12:01:16,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139407159] [2022-04-06 12:01:16,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139407159] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 12:01:16,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 12:01:16,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-06 12:01:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985150829] [2022-04-06 12:01:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 12:01:16,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 12:01:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 12:01:16,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 12:01:16,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 12:01:16,093 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-06 12:01:16,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 12:01:16,166 INFO L93 Difference]: Finished difference Result 57 states and 80 transitions. [2022-04-06 12:01:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 12:01:16,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-04-06 12:01:16,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 12:01:16,176 INFO L225 Difference]: With dead ends: 57 [2022-04-06 12:01:16,177 INFO L226 Difference]: Without dead ends: 27 [2022-04-06 12:01:16,180 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-06 12:01:16,184 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 12:01:16,185 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 12:01:16,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-06 12:01:16,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-06 12:01:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-06 12:01:16,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-04-06 12:01:16,223 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 33 [2022-04-06 12:01:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 12:01:16,224 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-04-06 12:01:16,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-04-06 12:01:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-04-06 12:01:16,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-06 12:01:16,226 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 12:01:16,227 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 12:01:16,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 12:01:16,227 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 12:01:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 12:01:16,229 INFO L85 PathProgramCache]: Analyzing trace with hash 512475503, now seen corresponding path program 1 times [2022-04-06 12:01:16,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 12:01:16,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261852932] [2022-04-06 12:01:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 12:01:16,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 12:01:16,267 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-06 12:01:16,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541607031] [2022-04-06 12:01:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 12:01:16,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 12:01:16,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 12:01:16,270 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) [2022-04-06 12:01:16,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 12:01:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 12:01:16,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 29 conjunts are in the unsatisfiable core [2022-04-06 12:01:16,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 12:01:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-06 12:01:23,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 12:01:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 12:01:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261852932] [2022-04-06 12:01:23,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-06 12:01:23,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541607031] [2022-04-06 12:01:23,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541607031] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 12:01:23,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 12:01:23,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-06 12:01:23,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279872404] [2022-04-06 12:01:23,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 12:01:23,466 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-06 12:01:23,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 12:01:23,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-06 12:01:23,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2022-04-06 12:01:23,467 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-06 12:01:23,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 12:01:23,627 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2022-04-06 12:01:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-06 12:01:23,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 33 [2022-04-06 12:01:23,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 12:01:23,629 INFO L225 Difference]: With dead ends: 35 [2022-04-06 12:01:23,629 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 12:01:23,629 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2022-04-06 12:01:23,630 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 12:01:23,630 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 94 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 12:01:23,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 12:01:23,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 12:01:23,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-06 12:01:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 12:01:23,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-04-06 12:01:23,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 12:01:23,631 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 12:01:23,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-06 12:01:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 12:01:23,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 12:01:23,633 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 12:01:23,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 12:01:23,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 12:01:23,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-06 12:01:23,925 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-06 12:01:23,925 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-06 12:01:23,925 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-06 12:01:23,925 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-06 12:01:23,925 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-06 12:01:23,925 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-06 12:01:23,925 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-06 12:01:23,925 INFO L885 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2022-04-06 12:01:23,925 INFO L882 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-04-06 12:01:23,925 INFO L882 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2022-04-06 12:01:23,926 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2022-04-06 12:01:23,926 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 51) the Hoare annotation is: true [2022-04-06 12:01:23,926 INFO L885 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true [2022-04-06 12:01:23,926 INFO L882 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-04-06 12:01:23,926 INFO L878 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (<= 0 main_~A~0) (<= main_~A~0 2)) [2022-04-06 12:01:23,926 INFO L878 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: (and (<= 0 main_~A~0) (<= main_~R~0 2) (<= main_~A~0 2) (<= 0 main_~R~0)) [2022-04-06 12:01:23,926 INFO L878 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~A~0 2) (< (+ (* main_~R~0 main_~R~0) 1) (+ main_~A~0 (* main_~R~0 2)))) [2022-04-06 12:01:23,926 INFO L882 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-04-06 12:01:23,926 INFO L878 garLoopResultBuilder]: At program point L39-2(lines 35 46) the Hoare annotation is: (let ((.cse1 (div (+ (* (- 1) main_~u~0) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (= (+ (* (- 1) main_~A~0) .cse0) main_~r~0) (= (mod (+ main_~u~0 1) 2) 0) (= (mod main_~A~0 2) 1) (< (+ .cse0 1) (+ main_~A~0 (* 2 .cse1))) (<= main_~A~0 2) (= main_~v~0 1) (< (+ (* main_~R~0 main_~R~0) 1) (+ main_~A~0 (* main_~R~0 2)))))) [2022-04-06 12:01:23,927 INFO L878 garLoopResultBuilder]: At program point L35-2(lines 35 46) the Hoare annotation is: (let ((.cse1 (div (+ (* (- 1) main_~u~0) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (= (+ (* (- 1) main_~A~0) .cse0) main_~r~0) (= (mod (+ main_~u~0 1) 2) 0) (= (mod main_~A~0 2) 1) (< (+ .cse0 1) (+ main_~A~0 (* 2 .cse1))) (<= main_~A~0 2) (= main_~v~0 1) (< (+ (* main_~R~0 main_~R~0) 1) (+ main_~A~0 (* main_~R~0 2)))))) [2022-04-06 12:01:23,927 INFO L878 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (div (+ (* (- 1) main_~u~0) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (= (+ (* (- 1) main_~A~0) .cse0) main_~r~0) (= (mod (+ main_~u~0 1) 2) 0) (= (mod main_~A~0 2) 1) (< (+ .cse0 1) (+ main_~A~0 (* 2 .cse1))) (<= main_~A~0 2) (= main_~v~0 1) (< (+ (* main_~R~0 main_~R~0) 1) (+ main_~A~0 (* main_~R~0 2)))))) [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point L36-1(lines 35 46) no Hoare annotation was computed. [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 19 51) no Hoare annotation was computed. [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point L39(lines 39 45) no Hoare annotation was computed. [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 19 51) no Hoare annotation was computed. [2022-04-06 12:01:23,927 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 11 17) the Hoare annotation is: true [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2022-04-06 12:01:23,927 INFO L882 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2022-04-06 12:01:23,928 INFO L882 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2022-04-06 12:01:23,928 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-04-06 12:01:23,928 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2022-04-06 12:01:23,930 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-06 12:01:23,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 12:01:23,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 12:01:23 BasicIcfg [2022-04-06 12:01:23,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 12:01:23,943 INFO L158 Benchmark]: Toolchain (without parser) took 8702.21ms. Allocated memory is still 186.6MB. Free memory was 137.3MB in the beginning and 100.5MB in the end (delta: 36.9MB). Peak memory consumption was 37.4MB. Max. memory is 8.0GB. [2022-04-06 12:01:23,943 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 12:01:23,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.57ms. Allocated memory is still 186.6MB. Free memory was 137.1MB in the beginning and 164.2MB in the end (delta: -27.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-06 12:01:23,944 INFO L158 Benchmark]: Boogie Preprocessor took 17.18ms. Allocated memory is still 186.6MB. Free memory was 164.2MB in the beginning and 162.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-06 12:01:23,944 INFO L158 Benchmark]: RCFGBuilder took 254.26ms. Allocated memory is still 186.6MB. Free memory was 162.8MB in the beginning and 151.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-06 12:01:23,944 INFO L158 Benchmark]: IcfgTransformer took 50.41ms. Allocated memory is still 186.6MB. Free memory was 151.8MB in the beginning and 150.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 12:01:23,944 INFO L158 Benchmark]: TraceAbstraction took 8185.78ms. Allocated memory is still 186.6MB. Free memory was 150.0MB in the beginning and 100.5MB in the end (delta: 49.5MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-04-06 12:01:23,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.57ms. Allocated memory is still 186.6MB. Free memory was 137.1MB in the beginning and 164.2MB in the end (delta: -27.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.18ms. Allocated memory is still 186.6MB. Free memory was 164.2MB in the beginning and 162.8MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 254.26ms. Allocated memory is still 186.6MB. Free memory was 162.8MB in the beginning and 151.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 50.41ms. Allocated memory is still 186.6MB. Free memory was 151.8MB in the beginning and 150.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 8185.78ms. Allocated memory is still 186.6MB. Free memory was 150.0MB in the beginning and 100.5MB in the end (delta: 49.5MB). Peak memory consumption was 50.3MB. 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 128 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 48 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 24 PreInvPairs, 30 NumberOfFragments, 288 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 6 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 48/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((-1 * A + (-1 * u + 1) / -2 * ((-1 * u + 1) / -2) == r && (u + 1) % 2 == 0) && A % 2 == 1) && (-1 * u + 1) / -2 * ((-1 * u + 1) / -2) + 1 < A + 2 * ((-1 * u + 1) / -2)) && A <= 2) && v == 1) && R * R + 1 < A + R * 2 RESULT: Ultimate proved your program to be correct! [2022-04-06 12:01:23,973 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...