/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/nla-digbench-scaling/ps2-ll_unwindbound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:46:20,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:46:20,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:46:20,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:46:20,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:46:20,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:46:20,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:46:20,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:46:20,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:46:20,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:46:20,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:46:20,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:46:20,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:46:20,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:46:20,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:46:20,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:46:20,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:46:20,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:46:20,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:46:20,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:46:20,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:46:20,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:46:20,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:46:20,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:46:20,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 02:46:20,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:46:20,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:46:20,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:46:20,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:46:20,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:46:20,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:46:20,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:46:20,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:46:20,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:46:20,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:46:20,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:46:20,855 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 02:46:20,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:46:20,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:46:20,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:46:20,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:46:20,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:46:20,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:46:20,873 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:46:20,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:46:20,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:46:20,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:46:20,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:46:20,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:46:20,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:46:20,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:46:20,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:46:20,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:46:20,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:46:20,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:46:20,876 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:46:20,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:46:21,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:46:21,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:46:21,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:46:21,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:46:21,082 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:46:21,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound50.c [2022-01-11 02:46:21,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed231557/91e6b987189447428d0188d9140b8359/FLAGd33d53887 [2022-01-11 02:46:21,450 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:46:21,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound50.c [2022-01-11 02:46:21,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed231557/91e6b987189447428d0188d9140b8359/FLAGd33d53887 [2022-01-11 02:46:21,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed231557/91e6b987189447428d0188d9140b8359 [2022-01-11 02:46:21,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:46:21,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:46:21,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:46:21,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:46:21,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:46:21,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:46:21" (1/1) ... [2022-01-11 02:46:21,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7e96f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:21, skipping insertion in model container [2022-01-11 02:46:21,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:46:21" (1/1) ... [2022-01-11 02:46:21,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:46:21,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:46:22,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound50.c[454,467] [2022-01-11 02:46:22,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:46:22,053 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:46:22,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_unwindbound50.c[454,467] [2022-01-11 02:46:22,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:46:22,073 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:46:22,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22 WrapperNode [2022-01-11 02:46:22,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:46:22,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:46:22,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:46:22,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:46:22,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,093 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2022-01-11 02:46:22,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:46:22,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:46:22,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:46:22,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:46:22,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:46:22,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:46:22,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:46:22,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:46:22,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:46:22,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:46:22,153 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 02:46:22,167 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 02:46:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:46:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:46:22,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:46:22,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:46:22,224 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:46:22,225 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:46:22,415 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:46:22,419 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:46:22,419 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 02:46:22,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:46:22 BoogieIcfgContainer [2022-01-11 02:46:22,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:46:22,421 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:46:22,421 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:46:22,424 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:46:22,425 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:46:22" (1/1) ... [2022-01-11 02:46:22,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:46:22 BasicIcfg [2022-01-11 02:46:22,493 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:46:22,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:46:22,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:46:22,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:46:22,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:46:21" (1/4) ... [2022-01-11 02:46:22,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626240f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:46:22, skipping insertion in model container [2022-01-11 02:46:22,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:46:22" (2/4) ... [2022-01-11 02:46:22,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626240f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:46:22, skipping insertion in model container [2022-01-11 02:46:22,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:46:22" (3/4) ... [2022-01-11 02:46:22,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626240f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:46:22, skipping insertion in model container [2022-01-11 02:46:22,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:46:22" (4/4) ... [2022-01-11 02:46:22,498 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound50.cTransformedIcfg [2022-01-11 02:46:22,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:46:22,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 02:46:22,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:46:22,554 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 02:46:22,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 02:46:22,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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 02:46:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 02:46:22,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:46:22,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 02:46:22,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:46:22,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:46:22,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2016054008, now seen corresponding path program 1 times [2022-01-11 02:46:22,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:46:22,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675884816] [2022-01-11 02:46:22,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:46:22,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:46:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:46:22,671 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 02:46:22,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:46:22,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675884816] [2022-01-11 02:46:22,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675884816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:46:22,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:46:22,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:46:22,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505355847] [2022-01-11 02:46:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:46:22,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:46:22,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:46:22,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:46:22,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:46:22,700 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-01-11 02:46:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:46:22,720 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-01-11 02:46:22,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:46:22,722 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 [2022-01-11 02:46:22,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:46:22,726 INFO L225 Difference]: With dead ends: 32 [2022-01-11 02:46:22,726 INFO L226 Difference]: Without dead ends: 13 [2022-01-11 02:46:22,729 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 [2022-01-11 02:46:22,733 INFO L933 BasicCegarLoop]: 18 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, 18 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 [2022-01-11 02:46:22,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:46:22,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-11 02:46:22,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-11 02:46:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 02:46:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-01-11 02:46:22,763 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2022-01-11 02:46:22,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:46:22,767 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-01-11 02:46:22,767 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) [2022-01-11 02:46:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-01-11 02:46:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 02:46:22,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:46:22,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 02:46:22,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:46:22,769 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:46:22,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:46:22,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2016022230, now seen corresponding path program 1 times [2022-01-11 02:46:22,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:46:22,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743707473] [2022-01-11 02:46:22,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:46:22,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:46:22,803 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:46:22,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132904378] [2022-01-11 02:46:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:46:22,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:46:22,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:46:22,805 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 02:46:22,806 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 02:46:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:46:22,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-11 02:46:22,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:46:23,020 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 02:46:23,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:46:23,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:46:23,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743707473] [2022-01-11 02:46:23,021 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:46:23,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132904378] [2022-01-11 02:46:23,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132904378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:46:23,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:46:23,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:46:23,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140717489] [2022-01-11 02:46:23,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:46:23,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:46:23,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:46:23,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:46:23,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:46:23,025 INFO L87 Difference]: Start difference. First operand 13 states and 14 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) [2022-01-11 02:46:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:46:23,099 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-01-11 02:46:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:46:23,100 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 [2022-01-11 02:46:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:46:23,100 INFO L225 Difference]: With dead ends: 25 [2022-01-11 02:46:23,100 INFO L226 Difference]: Without dead ends: 18 [2022-01-11 02:46:23,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:46:23,101 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:46:23,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:46:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-01-11 02:46:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-01-11 02:46:23,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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 02:46:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-01-11 02:46:23,105 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2022-01-11 02:46:23,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:46:23,105 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-01-11 02:46:23,105 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) [2022-01-11 02:46:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-01-11 02:46:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:46:23,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:46:23,106 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:46:23,128 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 02:46:23,315 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 02:46:23,316 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:46:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:46:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash -655508129, now seen corresponding path program 1 times [2022-01-11 02:46:23,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:46:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493140868] [2022-01-11 02:46:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:46:23,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:46:23,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:46:23,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797399104] [2022-01-11 02:46:23,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:46:23,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:46:23,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:46:23,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:46:23,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:46:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:46:23,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-11 02:46:23,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:46:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:46:23,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:46:24,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 02:46:24,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:46:24,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493140868] [2022-01-11 02:46:24,056 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:46:24,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797399104] [2022-01-11 02:46:24,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797399104] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:46:24,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:46:24,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2022-01-11 02:46:24,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560695997] [2022-01-11 02:46:24,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:46:24,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 02:46:24,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:46:24,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 02:46:24,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-11 02:46:24,059 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 02:46:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:46:34,157 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-01-11 02:46:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:46:34,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-11 02:46:34,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:46:34,158 INFO L225 Difference]: With dead ends: 25 [2022-01-11 02:46:34,158 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 02:46:34,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=27, Invalid=44, Unknown=1, NotChecked=0, Total=72 [2022-01-11 02:46:34,159 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:46:34,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:46:34,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 02:46:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 02:46:34,160 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 02:46:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 02:46:34,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-01-11 02:46:34,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:46:34,160 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 02:46:34,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 02:46:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 02:46:34,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 02:46:34,163 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-11 02:46:34,163 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-11 02:46:34,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 02:46:34,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-11 02:46:34,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L854 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= 0 (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (* 18446744073709551615 (mod (* 2 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 18446744073709551616)) 18446744073709551616) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616)) 18446744073709551616))) (and (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~c~0#1Int| 0) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0))) [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point L27-4(lines 27 36) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 27 36) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L858 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2022-01-11 02:46:34,464 INFO L861 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2022-01-11 02:46:34,465 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-01-11 02:46:34,465 INFO L854 garLoopResultBuilder]: At program point L10-2(lines 9 15) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= 0 (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (mod (* 18446744073709551615 (mod (* 2 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 18446744073709551616)) 18446744073709551616) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616)) 18446744073709551616))) [2022-01-11 02:46:34,465 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-01-11 02:46:34,465 INFO L861 garLoopResultBuilder]: At program point L39(lines 18 40) the Hoare annotation is: true [2022-01-11 02:46:34,465 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-01-11 02:46:34,465 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2022-01-11 02:46:34,465 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 02:46:34,465 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 02:46:34,467 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-11 02:46:34,468 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 02:46:34,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:46:34 BasicIcfg [2022-01-11 02:46:34,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 02:46:34,499 INFO L158 Benchmark]: Toolchain (without parser) took 12594.24ms. Allocated memory was 173.0MB in the beginning and 210.8MB in the end (delta: 37.7MB). Free memory was 123.8MB in the beginning and 139.9MB in the end (delta: -16.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,499 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 173.0MB. Free memory was 140.6MB in the beginning and 140.5MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:46:34,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.40ms. Allocated memory is still 173.0MB. Free memory was 123.6MB in the beginning and 151.0MB in the end (delta: -27.4MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.77ms. Allocated memory is still 173.0MB. Free memory was 151.0MB in the beginning and 149.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,500 INFO L158 Benchmark]: Boogie Preprocessor took 29.22ms. Allocated memory is still 173.0MB. Free memory was 149.5MB in the beginning and 147.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,501 INFO L158 Benchmark]: RCFGBuilder took 296.20ms. Allocated memory is still 173.0MB. Free memory was 147.9MB in the beginning and 138.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,503 INFO L158 Benchmark]: IcfgTransformer took 72.29ms. Allocated memory is still 173.0MB. Free memory was 138.9MB in the beginning and 134.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,503 INFO L158 Benchmark]: TraceAbstraction took 12004.42ms. Allocated memory was 173.0MB in the beginning and 210.8MB in the end (delta: 37.7MB). Free memory was 134.2MB in the beginning and 139.9MB in the end (delta: -5.7MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. [2022-01-11 02:46:34,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 173.0MB. Free memory was 140.6MB in the beginning and 140.5MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 166.40ms. Allocated memory is still 173.0MB. Free memory was 123.6MB in the beginning and 151.0MB in the end (delta: -27.4MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.77ms. Allocated memory is still 173.0MB. Free memory was 151.0MB in the beginning and 149.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.22ms. Allocated memory is still 173.0MB. Free memory was 149.5MB in the beginning and 147.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 296.20ms. Allocated memory is still 173.0MB. Free memory was 147.9MB in the beginning and 138.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgTransformer took 72.29ms. Allocated memory is still 173.0MB. Free memory was 138.9MB in the beginning and 134.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 12004.42ms. Allocated memory was 173.0MB in the beginning and 210.8MB in the end (delta: 37.7MB). Free memory was 134.2MB in the beginning and 139.9MB in the end (delta: -5.7MB). Peak memory consumption was 33.0MB. 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: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 39 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 67 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 108 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 7 NumberOfNonLiveVariables, 216 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ~bvule32(1bv32, cond) && 0bv64 == ~bvadd16(~bvadd16(~zero_extendFrom64To65(y), ~zero_extendFrom64To65(~bvmul64(18446744073709551615bv128, ~zero_extendFrom64To128(~bvmul64(2bv65, ~zero_extendFrom64To65(x))[63:0]))[63:0])), ~zero_extendFrom64To65(~bvmul64(~zero_extendFrom64To128(y), ~zero_extendFrom64To128(y))[63:0]))[63:0] - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((~bvule64(x, 0bv64) && ~bvule64(0bv64, x)) && ~bvule64(0bv64, y)) && ~bvule64(y, 0bv64)) && c == 0bv64) || (~bvule32(1bv32, cond) && 0bv64 == ~bvadd16(~bvadd16(~zero_extendFrom64To65(y), ~zero_extendFrom64To65(~bvmul64(18446744073709551615bv128, ~zero_extendFrom64To128(~bvmul64(2bv65, ~zero_extendFrom64To65(x))[63:0]))[63:0])), ~zero_extendFrom64To65(~bvmul64(~zero_extendFrom64To128(y), ~zero_extendFrom64To128(y))[63:0]))[63:0]) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-11 02:46:34,534 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...