/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:25:05,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:25:05,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:25:05,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:25:05,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:25:05,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:25:05,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:25:05,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:25:05,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:25:05,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:25:05,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:25:05,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:25:05,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:25:05,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:25:05,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:25:05,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:25:05,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:25:05,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:25:05,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:25:05,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:25:05,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:25:05,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:25:05,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:25:05,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:25:05,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:25:05,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:25:05,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:25:05,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:25:05,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:25:05,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:25:05,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:25:05,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:25:05,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:25:05,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:25:05,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:25:05,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:25:05,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:25:05,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:25:05,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:25:05,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:25:05,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:25:05,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 11:25:05,325 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:25:05,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:25:05,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:25:05,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:25:05,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:25:05,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:25:05,326 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:25:05,326 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:25:05,326 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:25:05,326 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:25:05,327 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:25:05,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:25:05,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:25:05,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:25:05,327 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:25:05,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:25:05,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:25:05,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:25:05,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:25:05,329 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:25:05,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:25:05,329 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:25:05,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:25:05,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:25:05,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:25:05,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:25:05,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:25:05,344 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:25:05,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:25:05,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:25:05,344 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:25:05,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:25:05,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:25:05,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:25:05,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:25:05,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:25:05,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:25:05,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:25:05,677 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:25:05,677 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:25:05,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c [2023-04-01 11:25:06,889 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:25:07,075 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:25:07,076 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c [2023-04-01 11:25:07,079 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14386b111/28ad75a69c0f453283992bbf67195187/FLAG7e4a9c66e [2023-04-01 11:25:07,089 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14386b111/28ad75a69c0f453283992bbf67195187 [2023-04-01 11:25:07,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:25:07,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:25:07,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:25:07,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:25:07,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:25:07,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613027c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07, skipping insertion in model container [2023-04-01 11:25:07,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:25:07,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:25:07,191 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c[555,568] [2023-04-01 11:25:07,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:25:07,207 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:25:07,215 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c[555,568] [2023-04-01 11:25:07,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:25:07,228 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:25:07,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07 WrapperNode [2023-04-01 11:25:07,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:25:07,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:25:07,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:25:07,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:25:07,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,245 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:25:07,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:25:07,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:25:07,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:25:07,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (1/1) ... [2023-04-01 11:25:07,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:25:07,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:25:07,283 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) [2023-04-01 11:25:07,287 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 [2023-04-01 11:25:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:25:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:25:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:25:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 11:25:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 11:25:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:25:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:25:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:25:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:25:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:25:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:25:07,388 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:25:07,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:25:07,545 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:25:07,560 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:25:07,566 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 11:25:07,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:25:07 BoogieIcfgContainer [2023-04-01 11:25:07,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:25:07,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:25:07,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:25:07,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:25:07,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:25:07" (1/3) ... [2023-04-01 11:25:07,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d83b401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:25:07, skipping insertion in model container [2023-04-01 11:25:07,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:25:07" (2/3) ... [2023-04-01 11:25:07,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d83b401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:25:07, skipping insertion in model container [2023-04-01 11:25:07,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:25:07" (3/3) ... [2023-04-01 11:25:07,574 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound2.c [2023-04-01 11:25:07,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:25:07,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:25:07,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:25:07,641 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e1de3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:25:07,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:25:07,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-01 11:25:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-01 11:25:07,650 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:25:07,651 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:25:07,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:25:07,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:25:07,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1759033188, now seen corresponding path program 1 times [2023-04-01 11:25:07,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:25:07,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217986947] [2023-04-01 11:25:07,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:25:07,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:25:07,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:25:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195793825] [2023-04-01 11:25:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:25:07,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:25:07,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:25:07,741 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) [2023-04-01 11:25:07,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 11:25:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:25:07,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-01 11:25:07,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:25:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 11:25:07,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 11:25:07,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:25:07,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217986947] [2023-04-01 11:25:07,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:25:07,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195793825] [2023-04-01 11:25:07,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195793825] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:25:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:25:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 11:25:07,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429760761] [2023-04-01 11:25:07,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:25:07,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 11:25:07,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:25:08,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 11:25:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 11:25:08,011 INFO L87 Difference]: Start difference. First operand has 26 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 11:25:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:25:08,125 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2023-04-01 11:25:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 11:25:08,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2023-04-01 11:25:08,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:25:08,132 INFO L225 Difference]: With dead ends: 49 [2023-04-01 11:25:08,132 INFO L226 Difference]: Without dead ends: 30 [2023-04-01 11:25:08,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-01 11:25:08,165 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:25:08,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 80 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:25:08,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-04-01 11:25:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-04-01 11:25:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 11:25:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-04-01 11:25:08,191 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 18 [2023-04-01 11:25:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:25:08,191 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-04-01 11:25:08,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 11:25:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-04-01 11:25:08,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-01 11:25:08,192 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:25:08,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:25:08,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 11:25:08,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-04-01 11:25:08,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:25:08,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:25:08,397 INFO L85 PathProgramCache]: Analyzing trace with hash 431218069, now seen corresponding path program 1 times [2023-04-01 11:25:08,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:25:08,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441491952] [2023-04-01 11:25:08,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:25:08,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:25:08,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:25:08,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390449722] [2023-04-01 11:25:08,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:25:08,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:25:08,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:25:08,420 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) [2023-04-01 11:25:08,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 11:25:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 11:25:08,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 11:25:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 11:25:08,511 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 11:25:08,511 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 11:25:08,512 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 11:25:08,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-01 11:25:08,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-04-01 11:25:08,721 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 11:25:08,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 11:25:08,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 11:25:08 BoogieIcfgContainer [2023-04-01 11:25:08,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 11:25:08,739 INFO L158 Benchmark]: Toolchain (without parser) took 1648.15ms. Allocated memory is still 237.0MB. Free memory was 186.5MB in the beginning and 190.8MB in the end (delta: -4.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:25:08,739 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 196.1MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:25:08,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 135.49ms. Allocated memory is still 237.0MB. Free memory was 186.0MB in the beginning and 176.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-04-01 11:25:08,740 INFO L158 Benchmark]: Boogie Preprocessor took 18.04ms. Allocated memory is still 237.0MB. Free memory was 175.5MB in the beginning and 174.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 11:25:08,740 INFO L158 Benchmark]: RCFGBuilder took 320.70ms. Allocated memory is still 237.0MB. Free memory was 174.4MB in the beginning and 161.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 11:25:08,741 INFO L158 Benchmark]: TraceAbstraction took 1169.62ms. Allocated memory is still 237.0MB. Free memory was 161.3MB in the beginning and 190.8MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:25:08,744 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 196.1MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 135.49ms. Allocated memory is still 237.0MB. Free memory was 186.0MB in the beginning and 176.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.04ms. Allocated memory is still 237.0MB. Free memory was 175.5MB in the beginning and 174.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 320.70ms. Allocated memory is still 237.0MB. Free memory was 174.4MB in the beginning and 161.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1169.62ms. Allocated memory is still 237.0MB. Free memory was 161.3MB in the beginning and 190.8MB in the end (delta: -29.5MB). 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] CALL assume_abort_if_not(z>=0 && z<=2) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) [L26] RET assume_abort_if_not(z>=0 && z<=2) VAL [z=4294967296] [L27] k = __VERIFIER_nondet_uint() [L28] CALL assume_abort_if_not(k>=0 && k<=2) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) [L28] RET assume_abort_if_not(k>=0 && k<=2) VAL [k=1, z=4294967296] [L30] x = 1 [L31] y = z [L32] c = 1 VAL [c=1, k=1, x=1, y=0, z=4294967296] [L34] COND TRUE 1 VAL [c=1, k=1, x=1, y=0, z=4294967296] [L35] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L35] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, k=1, x=1, y=0, z=4294967296] [L37] COND TRUE !(c < k) VAL [c=1, k=1, x=1, y=0, z=4294967296] [L46] x = x * (z - 1) VAL [c=1, k=1, x=4294967295, y=0, z=4294967296] [L48] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 18 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 3 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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! [2023-04-01 11:25:08,756 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...