/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_NONE.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:27:25,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:27:25,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:27:25,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:27:25,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:27:25,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:27:25,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:27:25,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:27:25,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:27:25,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:27:25,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:27:25,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:27:25,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:27:25,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:27:25,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:27:25,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:27:25,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:27:25,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:27:25,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:27:25,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:27:25,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:27:25,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:27:25,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:27:25,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:27:25,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:27:25,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:27:25,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:27:25,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:27:25,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:27:25,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:27:25,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:27:25,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:27:25,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:27:25,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:27:25,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:27:25,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:27:25,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:27:25,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:27:25,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:27:25,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:27:25,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:27:25,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:27:25,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:27:25,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:27:25,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:27:25,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:27:25,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:27:25,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:27:25,308 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:27:25,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:27:25,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:27:25,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:27:25,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:27:25,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:27:25,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:27:25,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:27:25,310 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:27:25,310 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:27:25,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:27:25,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:27:25,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:27:25,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:27:25,491 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:27:25,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-01-10 20:27:25,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c52fdf4a/70be70952e6848f39de61aac830d91ca/FLAG915df534d [2022-01-10 20:27:25,823 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:27:25,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-01-10 20:27:25,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c52fdf4a/70be70952e6848f39de61aac830d91ca/FLAG915df534d [2022-01-10 20:27:26,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c52fdf4a/70be70952e6848f39de61aac830d91ca [2022-01-10 20:27:26,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:27:26,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:27:26,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:27:26,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:27:26,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:27:26,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5694fba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26, skipping insertion in model container [2022-01-10 20:27:26,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:27:26,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:27:26,410 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/geo1-u.c[555,568] [2022-01-10 20:27:26,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:27:26,444 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:27:26,455 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/geo1-u.c[555,568] [2022-01-10 20:27:26,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:27:26,474 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:27:26,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26 WrapperNode [2022-01-10 20:27:26,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:27:26,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:27:26,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:27:26,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:27:26,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,505 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2022-01-10 20:27:26,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:27:26,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:27:26,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:27:26,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:27:26,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:27:26,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:27:26,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:27:26,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:27:26,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:26,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:27:26,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:27:26,583 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 20:27:26,588 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 20:27:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:27:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:27:26,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:27:26,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:27:26,659 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:27:26,661 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:27:26,981 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:27:26,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:27:26,985 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:27:26,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:27:26 BoogieIcfgContainer [2022-01-10 20:27:26,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:27:26,986 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:27:26,987 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:27:26,987 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:27:26,989 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:27:26" (1/1) ... [2022-01-10 20:27:27,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:27:27 BasicIcfg [2022-01-10 20:27:27,045 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:27:27,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:27:27,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:27:27,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:27:27,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:27:26" (1/4) ... [2022-01-10 20:27:27,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305a73e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:27:27, skipping insertion in model container [2022-01-10 20:27:27,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:26" (2/4) ... [2022-01-10 20:27:27,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305a73e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:27:27, skipping insertion in model container [2022-01-10 20:27:27,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:27:26" (3/4) ... [2022-01-10 20:27:27,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305a73e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:27:27, skipping insertion in model container [2022-01-10 20:27:27,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:27:27" (4/4) ... [2022-01-10 20:27:27,056 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u.cTransformedIcfg [2022-01-10 20:27:27,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:27:27,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 20:27:27,101 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:27:27,106 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 20:27:27,106 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 20:27:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 15 states have internal predecessors, (20), 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 20:27:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-10 20:27:27,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:27:27,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-10 20:27:27,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:27:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:27:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash 72561012, now seen corresponding path program 1 times [2022-01-10 20:27:27,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:27:27,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514687833] [2022-01-10 20:27:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:27,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:27:27,181 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:27:27,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193873356] [2022-01-10 20:27:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:27,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:27:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:27:27,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:27:27,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 20:27:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:27:27,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 20:27:27,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:27:27,337 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 20:27:27,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:27:27,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:27:27,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514687833] [2022-01-10 20:27:27,338 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:27:27,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193873356] [2022-01-10 20:27:27,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193873356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:27:27,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:27:27,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 20:27:27,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691288245] [2022-01-10 20:27:27,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:27:27,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 20:27:27,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:27:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 20:27:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 20:27:27,365 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 15 states have internal predecessors, (20), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 20:27:27,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:27:27,612 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2022-01-10 20:27:27,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 20:27:27,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-01-10 20:27:27,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:27:27,618 INFO L225 Difference]: With dead ends: 35 [2022-01-10 20:27:27,618 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 20:27:27,620 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 20:27:27,622 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 20:27:27,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 29 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 20:27:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 20:27:27,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2022-01-10 20:27:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 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) [2022-01-10 20:27:27,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-01-10 20:27:27,641 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2022-01-10 20:27:27,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:27:27,641 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-01-10 20:27:27,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 20:27:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-01-10 20:27:27,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 20:27:27,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:27:27,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:27:27,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 20:27:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-01-10 20:27:27,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:27:27,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:27:27,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1570985039, now seen corresponding path program 1 times [2022-01-10 20:27:27,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:27:27,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496858931] [2022-01-10 20:27:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:27,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:27:27,876 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:27:27,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205459914] [2022-01-10 20:27:27,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:27,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:27:27,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:27:27,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 20:27:27,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 20:27:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:27:27,926 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 20:27:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:27:27,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 20:27:27,950 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 20:27:27,951 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 20:27:27,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 20:27:27,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 20:27:28,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-01-10 20:27:28,163 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 20:27:28,165 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 20:27:28,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:27:28 BasicIcfg [2022-01-10 20:27:28,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 20:27:28,185 INFO L158 Benchmark]: Toolchain (without parser) took 1909.99ms. Allocated memory is still 172.0MB. Free memory was 125.7MB in the beginning and 142.9MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:27:28,185 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 172.0MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:27:28,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.48ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 147.8MB in the end (delta: -22.3MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-01-10 20:27:28,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.77ms. Allocated memory is still 172.0MB. Free memory was 147.8MB in the beginning and 146.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 20:27:28,186 INFO L158 Benchmark]: Boogie Preprocessor took 29.70ms. Allocated memory is still 172.0MB. Free memory was 146.4MB in the beginning and 145.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 20:27:28,186 INFO L158 Benchmark]: RCFGBuilder took 449.85ms. Allocated memory is still 172.0MB. Free memory was 145.3MB in the beginning and 135.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 20:27:28,186 INFO L158 Benchmark]: IcfgTransformer took 58.32ms. Allocated memory is still 172.0MB. Free memory was 135.3MB in the beginning and 132.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 20:27:28,187 INFO L158 Benchmark]: TraceAbstraction took 1131.90ms. Allocated memory is still 172.0MB. Free memory was 132.1MB in the beginning and 142.9MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:27:28,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 172.0MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.48ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 147.8MB in the end (delta: -22.3MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.77ms. Allocated memory is still 172.0MB. Free memory was 147.8MB in the beginning and 146.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.70ms. Allocated memory is still 172.0MB. Free memory was 146.4MB in the beginning and 145.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 449.85ms. Allocated memory is still 172.0MB. Free memory was 145.3MB in the beginning and 135.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 58.32ms. Allocated memory is still 172.0MB. Free memory was 135.3MB in the beginning and 132.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1131.90ms. Allocated memory is still 172.0MB. Free memory was 132.1MB in the beginning and 142.9MB in the end (delta: -10.8MB). There was no memory consumed. 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] k = __VERIFIER_nondet_uint() [L28] x = 1 [L29] y = z [L30] c = 1 VAL [c=-1, x=-1, y=0, z=0] [L32] COND TRUE 1 [L33] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L33] RET __VERIFIER_assert(x*z - x - y + 1 == 0) [L35] COND TRUE !(c < k) VAL [c=-1, k=-1, x=-1, y=0, z=0] [L44] x = x * (z - 1) [L46] CALL __VERIFIER_assert(1 + x - y == 0) [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 4 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! [2022-01-10 20:27:28,221 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...