/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_SUM.epf -i ../../../trunk/examples/svcomp/recursive/McCarthy91-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:58:04,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:58:04,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:58:04,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:58:04,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:58:04,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:58:04,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:58:04,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:58:04,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:58:04,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:58:04,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:58:04,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:58:04,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:58:04,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:58:04,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:58:04,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:58:04,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:58:04,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:58:04,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:58:04,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:58:04,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:58:04,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:58:04,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:58:04,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:58:04,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:58:04,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:58:04,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:58:04,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:58:04,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:58:04,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:58:04,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:58:04,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:58:04,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:58:04,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:58:04,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:58:04,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:58:04,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:58:04,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:58:04,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:58:04,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:58:04,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:58:04,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:58:04,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:58:04,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:58:04,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:58:04,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:58:04,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:58:04,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:58:04,608 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:58:04,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:58:04,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:58:04,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:58:04,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:58:04,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:58:04,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:58:04,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:58:04,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:58:04,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:58:04,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:58:04,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:58:04,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:58:04,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:58:04,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:58:04,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:58:04,613 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:58:04,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:58:04,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:58:04,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:58:04,614 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:58:04,614 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:58:04,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:58:04,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:58:04,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:58:04,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:58:04,874 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:58:04,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/McCarthy91-2.c [2022-01-11 05:58:04,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65588eeb1/9adb43ba4bf947429ea0fc16d1e6cfa4/FLAG8444621f5 [2022-01-11 05:58:05,293 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:58:05,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c [2022-01-11 05:58:05,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65588eeb1/9adb43ba4bf947429ea0fc16d1e6cfa4/FLAG8444621f5 [2022-01-11 05:58:05,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65588eeb1/9adb43ba4bf947429ea0fc16d1e6cfa4 [2022-01-11 05:58:05,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:58:05,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:58:05,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:58:05,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:58:05,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:58:05,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e80be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05, skipping insertion in model container [2022-01-11 05:58:05,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:58:05,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:58:05,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c[749,762] [2022-01-11 05:58:05,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:58:05,895 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:58:05,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c[749,762] [2022-01-11 05:58:05,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:58:05,919 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:58:05,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05 WrapperNode [2022-01-11 05:58:05,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:58:05,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:58:05,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:58:05,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:58:05,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,950 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-01-11 05:58:05,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:58:05,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:58:05,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:58:05,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:58:05,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:58:05,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:58:05,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:58:05,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:58:05,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (1/1) ... [2022-01-11 05:58:05,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:58:06,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:58:06,013 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) [2022-01-11 05:58:06,036 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 [2022-01-11 05:58:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:58:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:58:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:58:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:58:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-01-11 05:58:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-01-11 05:58:06,113 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:58:06,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:58:06,233 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:58:06,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:58:06,238 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 05:58:06,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:58:06 BoogieIcfgContainer [2022-01-11 05:58:06,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:58:06,240 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:58:06,240 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:58:06,241 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:58:06,244 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:58:06" (1/1) ... [2022-01-11 05:58:06,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:58:06 BasicIcfg [2022-01-11 05:58:06,332 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:58:06,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:58:06,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:58:06,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:58:06,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:58:05" (1/4) ... [2022-01-11 05:58:06,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2a71b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:58:06, skipping insertion in model container [2022-01-11 05:58:06,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:58:05" (2/4) ... [2022-01-11 05:58:06,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2a71b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:58:06, skipping insertion in model container [2022-01-11 05:58:06,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:58:06" (3/4) ... [2022-01-11 05:58:06,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2a71b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:58:06, skipping insertion in model container [2022-01-11 05:58:06,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:58:06" (4/4) ... [2022-01-11 05:58:06,338 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.cTransformedIcfg [2022-01-11 05:58:06,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:58:06,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:58:06,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:58:06,413 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 [2022-01-11 05:58:06,413 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:58:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-11 05:58:06,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-11 05:58:06,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:58:06,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:58:06,434 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:58:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:58:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1792763745, now seen corresponding path program 1 times [2022-01-11 05:58:06,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:58:06,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128850444] [2022-01-11 05:58:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:58:06,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:58:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:06,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-11 05:58:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:58:07,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:58:07,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128850444] [2022-01-11 05:58:07,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128850444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:58:07,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:58:07,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:58:07,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913750362] [2022-01-11 05:58:07,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:58:07,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:58:07,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:58:07,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:58:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:58:07,250 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-11 05:58:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:58:07,442 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-01-11 05:58:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:58:07,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-01-11 05:58:07,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:58:07,450 INFO L225 Difference]: With dead ends: 29 [2022-01-11 05:58:07,450 INFO L226 Difference]: Without dead ends: 16 [2022-01-11 05:58:07,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:58:07,455 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:58:07,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:58:07,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-01-11 05:58:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-01-11 05:58:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-01-11 05:58:07,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-01-11 05:58:07,510 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2022-01-11 05:58:07,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:58:07,511 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-01-11 05:58:07,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-11 05:58:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-01-11 05:58:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-11 05:58:07,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:58:07,514 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:58:07,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:58:07,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:58:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:58:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash 265103160, now seen corresponding path program 1 times [2022-01-11 05:58:07,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:58:07,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320093389] [2022-01-11 05:58:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:58:07,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:58:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:07,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-11 05:58:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:07,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-01-11 05:58:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:08,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-11 05:58:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-11 05:58:08,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:58:08,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320093389] [2022-01-11 05:58:08,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320093389] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:58:08,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098877389] [2022-01-11 05:58:08,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:58:08,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:58:08,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:58:08,124 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) [2022-01-11 05:58:08,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 05:58:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:58:08,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 36 conjunts are in the unsatisfiable core [2022-01-11 05:58:08,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:58:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 05:58:13,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:58:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-11 05:58:18,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098877389] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:58:18,621 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:58:18,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 13] total 28 [2022-01-11 05:58:18,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699235974] [2022-01-11 05:58:18,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:58:18,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-11 05:58:18,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:58:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-11 05:58:18,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-01-11 05:58:18,625 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2022-01-11 05:58:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:58:20,644 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2022-01-11 05:58:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-11 05:58:20,645 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 21 [2022-01-11 05:58:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:58:20,645 INFO L225 Difference]: With dead ends: 21 [2022-01-11 05:58:20,645 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 05:58:20,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=257, Invalid=1149, Unknown=0, NotChecked=0, Total=1406 [2022-01-11 05:58:20,648 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 29 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:58:20,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 82 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:58:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 05:58:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 05:58:20,649 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) [2022-01-11 05:58:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 05:58:20,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-01-11 05:58:20,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:58:20,650 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 05:58:20,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2022-01-11 05:58:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 05:58:20,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 05:58:20,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 05:58:20,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 05:58:20,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:58:20,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 05:58:20,977 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 05:58:20,978 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 05:58:20,978 INFO L861 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: true [2022-01-11 05:58:20,978 INFO L858 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-01-11 05:58:20,978 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2022-01-11 05:58:20,978 INFO L861 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: true [2022-01-11 05:58:20,978 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-01-11 05:58:20,978 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 05:58:21,003 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2022-01-11 05:58:21,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 05:58:21,004 INFO L861 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2022-01-11 05:58:21,004 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2022-01-11 05:58:21,004 INFO L858 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2022-01-11 05:58:21,004 INFO L854 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (and (= f91_f91_~xInt |f91_f91_#in~xInt|) (not (< (+ f91_f91_~xInt 100) (* 2 (mod f91_f91_~xInt 2147483648)))) (<= f91_f91_~xInt 4294967295)) [2022-01-11 05:58:21,004 INFO L858 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2022-01-11 05:58:21,004 INFO L854 garLoopResultBuilder]: At program point L21-1(line 21) the Hoare annotation is: (and (= f91_f91_~xInt |f91_f91_#in~xInt|) (<= |f91_f91_#t~ret4Int| (+ (* (div (+ |f91_f91_#t~ret4Int| (- 4294967387)) 4294967296) 4294967296) 4294967397)) (or (<= 91 (mod (+ |f91_f91_#t~ret4Int| 4294967286) 4294967296)) (not (< (+ |f91_f91_#t~ret4Int| 100) (* 2 (mod |f91_f91_#t~ret4Int| 2147483648))))) (not (< (+ f91_f91_~xInt 100) (* 2 (mod f91_f91_~xInt 2147483648)))) (<= f91_f91_~xInt 4294967295)) [2022-01-11 05:58:21,004 INFO L858 garLoopResultBuilder]: For program point L21-2(line 21) no Hoare annotation was computed. [2022-01-11 05:58:21,011 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-11 05:58:21,013 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:58:21,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:58:21 BasicIcfg [2022-01-11 05:58:21,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:58:21,020 INFO L158 Benchmark]: Toolchain (without parser) took 15303.65ms. Allocated memory was 191.9MB in the beginning and 263.2MB in the end (delta: 71.3MB). Free memory was 141.7MB in the beginning and 240.6MB in the end (delta: -99.0MB). Peak memory consumption was 122.4MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,021 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:58:21,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.60ms. Allocated memory is still 191.9MB. Free memory was 141.5MB in the beginning and 168.9MB in the end (delta: -27.3MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.57ms. Allocated memory is still 191.9MB. Free memory was 168.9MB in the beginning and 167.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,022 INFO L158 Benchmark]: Boogie Preprocessor took 29.88ms. Allocated memory is still 191.9MB. Free memory was 167.3MB in the beginning and 166.8MB in the end (delta: 526.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,022 INFO L158 Benchmark]: RCFGBuilder took 257.28ms. Allocated memory is still 191.9MB. Free memory was 166.8MB in the beginning and 157.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,022 INFO L158 Benchmark]: IcfgTransformer took 92.46ms. Allocated memory is still 191.9MB. Free memory was 157.3MB in the beginning and 154.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,023 INFO L158 Benchmark]: TraceAbstraction took 14686.28ms. Allocated memory was 191.9MB in the beginning and 263.2MB in the end (delta: 71.3MB). Free memory was 153.7MB in the beginning and 240.6MB in the end (delta: -87.0MB). Peak memory consumption was 134.8MB. Max. memory is 8.0GB. [2022-01-11 05:58:21,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory is still 158.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 202.60ms. Allocated memory is still 191.9MB. Free memory was 141.5MB in the beginning and 168.9MB in the end (delta: -27.3MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.57ms. Allocated memory is still 191.9MB. Free memory was 168.9MB in the beginning and 167.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.88ms. Allocated memory is still 191.9MB. Free memory was 167.3MB in the beginning and 166.8MB in the end (delta: 526.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 257.28ms. Allocated memory is still 191.9MB. Free memory was 166.8MB in the beginning and 157.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 92.46ms. Allocated memory is still 191.9MB. Free memory was 157.3MB in the beginning and 154.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 14686.28ms. Allocated memory was 191.9MB in the beginning and 263.2MB in the end (delta: 71.3MB). Free memory was 153.7MB in the beginning and 240.6MB in the end (delta: -87.0MB). Peak memory consumption was 134.8MB. 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 - PositiveResult [Line: 32]: 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.6s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 103 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 281 IncrementalHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 20 mSDtfsCounter, 281 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 5 LocationsWithAnnotation, 14 PreInvPairs, 20 NumberOfFragments, 66 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1466 SizeOfPredicates, 5 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 16/36 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: 26]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-11 05:58:21,043 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...