/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:33:02,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:33:02,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:33:02,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 08:33:02,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 08:33:02,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 08:33:02,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 08:33:02,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 08:33:02,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 08:33:02,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 08:33:02,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 08:33:02,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 08:33:02,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:33:02,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:33:02,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:33:02,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:33:02,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:33:02,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:33:02,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:33:02,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:33:02,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:33:02,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:33:02,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:33:02,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:33:02,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 08:33:02,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 08:33:02,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 08:33:02,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 08:33:02,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 08:33:02,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 08:33:02,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 08:33:02,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 08:33:02,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 08:33:02,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:33:02,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:33:02,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:33:02,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 08:33:02,911 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:33:02,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:33:02,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:33:02,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:33:02,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:33:02,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:33:02,912 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:33:02,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:33:02,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:33:02,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:33:02,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:33:02,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:33:02,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:33:02,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:33:02,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:33:02,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:33:02,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:33:02,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:33:02,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 08:33:02,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 08:33:02,915 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:33:02,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:33:02,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:33:02,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 08:33:02,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:33:02,916 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 08:33:02,916 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:33:03,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:33:03,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:33:03,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:33:03,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:33:03,084 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:33:03,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2022-01-10 08:33:03,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b4aeddb/65168197d4f54aaca8deb9fa66d70e7a/FLAGb4a7b2612 [2022-01-10 08:33:03,485 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:33:03,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2022-01-10 08:33:03,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b4aeddb/65168197d4f54aaca8deb9fa66d70e7a/FLAGb4a7b2612 [2022-01-10 08:33:03,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b4aeddb/65168197d4f54aaca8deb9fa66d70e7a [2022-01-10 08:33:03,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:33:03,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 08:33:03,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:33:03,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:33:03,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:33:03,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c1e5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03, skipping insertion in model container [2022-01-10 08:33:03,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:33:03,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:33:03,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c[374,387] [2022-01-10 08:33:03,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:33:03,661 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:33:03,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c[374,387] [2022-01-10 08:33:03,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:33:03,683 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:33:03,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03 WrapperNode [2022-01-10 08:33:03,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:33:03,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:33:03,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:33:03,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:33:03,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,715 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-01-10 08:33:03,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:33:03,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:33:03,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:33:03,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:33:03,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:33:03,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:33:03,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:33:03,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:33:03,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:33:03,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:33:03,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 08:33:03,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 08:33:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:33:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:33:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:33:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:33:03,842 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:33:03,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:33:03,920 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:33:03,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:33:03,924 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 08:33:03,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:33:03 BoogieIcfgContainer [2022-01-10 08:33:03,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:33:03,926 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 08:33:03,926 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 08:33:03,927 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 08:33:03,929 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:33:03" (1/1) ... [2022-01-10 08:33:03,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:33:03 BasicIcfg [2022-01-10 08:33:03,957 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 08:33:03,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:33:03,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:33:03,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:33:03,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:33:03" (1/4) ... [2022-01-10 08:33:03,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5b82c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:33:03, skipping insertion in model container [2022-01-10 08:33:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:33:03" (2/4) ... [2022-01-10 08:33:03,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5b82c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:33:03, skipping insertion in model container [2022-01-10 08:33:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:33:03" (3/4) ... [2022-01-10 08:33:03,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5b82c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:33:03, skipping insertion in model container [2022-01-10 08:33:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:33:03" (4/4) ... [2022-01-10 08:33:03,962 INFO L111 eAbstractionObserver]: Analyzing ICFG multivar_1-1.cTransformedIcfg [2022-01-10 08:33:03,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:33:03,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 08:33:03,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:33:03,996 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 08:33:03,997 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 08:33:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:33:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 08:33:04,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:33:04,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 08:33:04,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:33:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:33:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1775995463, now seen corresponding path program 1 times [2022-01-10 08:33:04,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:33:04,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529140454] [2022-01-10 08:33:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:33:04,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:33:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:33:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:33:04,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:33:04,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529140454] [2022-01-10 08:33:04,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529140454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:33:04,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:33:04,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 08:33:04,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337813624] [2022-01-10 08:33:04,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:33:04,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 08:33:04,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:33:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 08:33:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:33:04,199 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:33:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:33:04,206 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-01-10 08:33:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 08:33:04,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 08:33:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:33:04,212 INFO L225 Difference]: With dead ends: 19 [2022-01-10 08:33:04,212 INFO L226 Difference]: Without dead ends: 7 [2022-01-10 08:33:04,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:33:04,216 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:33:04,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:33:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-01-10 08:33:04,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-01-10 08:33:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:33:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-01-10 08:33:04,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2022-01-10 08:33:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:33:04,233 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-01-10 08:33:04,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:33:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-01-10 08:33:04,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 08:33:04,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:33:04,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 08:33:04,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 08:33:04,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:33:04,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:33:04,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1776025254, now seen corresponding path program 1 times [2022-01-10 08:33:04,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:33:04,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769916718] [2022-01-10 08:33:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:33:04,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:33:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:33:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:33:04,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:33:04,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769916718] [2022-01-10 08:33:04,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769916718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:33:04,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:33:04,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 08:33:04,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740832627] [2022-01-10 08:33:04,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:33:04,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 08:33:04,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:33:04,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 08:33:04,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 08:33:04,285 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:33:04,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:33:04,299 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-01-10 08:33:04,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 08:33:04,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 08:33:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:33:04,299 INFO L225 Difference]: With dead ends: 7 [2022-01-10 08:33:04,299 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 08:33:04,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:33:04,300 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:33:04,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:33:04,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 08:33:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 08:33:04,302 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) [2022-01-10 08:33:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 08:33:04,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-01-10 08:33:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:33:04,302 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 08:33:04,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:33:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 08:33:04,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 08:33:04,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 08:33:04,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 08:33:04,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 08:33:04,311 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 08:33:04,311 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 08:33:04,311 INFO L854 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) [2022-01-10 08:33:04,311 INFO L858 garLoopResultBuilder]: For program point L17-3(lines 17 20) no Hoare annotation was computed. [2022-01-10 08:33:04,311 INFO L858 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2022-01-10 08:33:04,311 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-01-10 08:33:04,311 INFO L861 garLoopResultBuilder]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2022-01-10 08:33:04,311 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-01-10 08:33:04,312 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 23) no Hoare annotation was computed. [2022-01-10 08:33:04,312 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 08:33:04,312 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 08:33:04,314 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 08:33:04,315 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 08:33:04,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:33:04 BasicIcfg [2022-01-10 08:33:04,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 08:33:04,324 INFO L158 Benchmark]: Toolchain (without parser) took 823.05ms. Allocated memory is still 233.8MB. Free memory was 183.2MB in the beginning and 169.2MB in the end (delta: 14.0MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,324 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 233.8MB. Free memory is still 199.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 08:33:04,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.45ms. Allocated memory is still 233.8MB. Free memory was 183.0MB in the beginning and 210.1MB in the end (delta: -27.1MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.77ms. Allocated memory is still 233.8MB. Free memory was 210.1MB in the beginning and 208.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,326 INFO L158 Benchmark]: Boogie Preprocessor took 20.85ms. Allocated memory is still 233.8MB. Free memory was 208.6MB in the beginning and 207.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,326 INFO L158 Benchmark]: RCFGBuilder took 188.43ms. Allocated memory is still 233.8MB. Free memory was 207.5MB in the beginning and 198.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,326 INFO L158 Benchmark]: IcfgTransformer took 31.51ms. Allocated memory is still 233.8MB. Free memory was 198.6MB in the beginning and 196.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,327 INFO L158 Benchmark]: TraceAbstraction took 365.46ms. Allocated memory is still 233.8MB. Free memory was 195.4MB in the beginning and 169.2MB in the end (delta: 26.3MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-01-10 08:33:04,329 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 233.8MB. Free memory is still 199.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 181.45ms. Allocated memory is still 233.8MB. Free memory was 183.0MB in the beginning and 210.1MB in the end (delta: -27.1MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.77ms. Allocated memory is still 233.8MB. Free memory was 210.1MB in the beginning and 208.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.85ms. Allocated memory is still 233.8MB. Free memory was 208.6MB in the beginning and 207.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 188.43ms. Allocated memory is still 233.8MB. Free memory was 207.5MB in the beginning and 198.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 31.51ms. Allocated memory is still 233.8MB. Free memory was 198.6MB in the beginning and 196.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 365.46ms. Allocated memory is still 233.8MB. Free memory was 195.4MB in the beginning and 169.2MB in the end (delta: 26.3MB). Peak memory consumption was 26.2MB. 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: 8]: 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 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: y == x - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 08:33:04,358 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...