/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/loop-invariants/bin-suffix-5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:11:06,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:11:06,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:11:06,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:11:06,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:11:06,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:11:06,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:11:06,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:11:06,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:11:06,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:11:06,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:11:06,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:11:06,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:11:06,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:11:06,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:11:06,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:11:06,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:11:06,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:11:06,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:11:06,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:11:06,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:11:06,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:11:06,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:11:06,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:11:06,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:11:06,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:11:06,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:11:06,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:11:06,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:11:06,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:11:06,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:11:06,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:11:06,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:11:06,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:11:06,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:11:06,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:11:06,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:11:06,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:11:06,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:11:06,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:11:06,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:11:06,573 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 11:11:06,593 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:11:06,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:11:06,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:11:06,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:11:06,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:11:06,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:11:06,594 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:11:06,595 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:11:06,595 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:11:06,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:11:06,595 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:11:06,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:11:06,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:11:06,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:11:06,596 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:11:06,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:11:06,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:11:06,596 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:11:06,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:11:06,597 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:11:06,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:11:06,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:11:06,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:11:06,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:11:06,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:11:06,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:11:06,599 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:11:06,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:11:06,599 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:11:06,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:11:06,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:11:06,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:11:06,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:11:06,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:11:06,600 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:11:06,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:11:06,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:11:06,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:11:06,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:11:06,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:11:06,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:11:06,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:11:06,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:11:06,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:11:06,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:11:06,846 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:11:06,847 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:11:06,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2023-04-01 11:11:08,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:11:08,282 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:11:08,282 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2023-04-01 11:11:08,287 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6c6215a/d8c0cb0a1a50473c982d5d158568b702/FLAGd05bb6a90 [2023-04-01 11:11:08,304 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f6c6215a/d8c0cb0a1a50473c982d5d158568b702 [2023-04-01 11:11:08,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:11:08,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:11:08,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:11:08,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:11:08,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:11:08,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584ecb0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08, skipping insertion in model container [2023-04-01 11:11:08,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:11:08,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:11:08,460 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/loop-invariants/bin-suffix-5.c[359,372] [2023-04-01 11:11:08,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:11:08,477 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:11:08,485 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/loop-invariants/bin-suffix-5.c[359,372] [2023-04-01 11:11:08,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:11:08,497 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:11:08,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08 WrapperNode [2023-04-01 11:11:08,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:11:08,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:11:08,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:11:08,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:11:08,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:11:08,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:11:08,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:11:08,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:11:08,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (1/1) ... [2023-04-01 11:11:08,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:11:08,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:11:08,562 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 11:11:08,567 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 11:11:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:11:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:11:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:11:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 11:11:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:11:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:11:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:11:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:11:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:11:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:11:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:11:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:11:08,658 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:11:08,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:11:08,744 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:11:08,778 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:11:08,778 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 11:11:08,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:11:08 BoogieIcfgContainer [2023-04-01 11:11:08,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:11:08,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:11:08,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:11:08,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:11:08,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:11:08" (1/3) ... [2023-04-01 11:11:08,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38912f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:11:08, skipping insertion in model container [2023-04-01 11:11:08,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:11:08" (2/3) ... [2023-04-01 11:11:08,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38912f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:11:08, skipping insertion in model container [2023-04-01 11:11:08,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:11:08" (3/3) ... [2023-04-01 11:11:08,792 INFO L112 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2023-04-01 11:11:08,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:11:08,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:11:08,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:11:08,855 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;@38191fe5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:11:08,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:11:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 11:11:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-04-01 11:11:08,866 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:11:08,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:11:08,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:11:08,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:11:08,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1441921796, now seen corresponding path program 1 times [2023-04-01 11:11:08,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:11:08,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576249555] [2023-04-01 11:11:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:11:08,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:11:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:11:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:11:09,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:11:09,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576249555] [2023-04-01 11:11:09,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576249555] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:11:09,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:11:09,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:11:09,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797629749] [2023-04-01 11:11:09,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:11:09,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:11:09,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:11:09,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:11:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:11:09,133 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:11:09,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:11:09,165 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2023-04-01 11:11:09,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:11:09,168 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-04-01 11:11:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:11:09,173 INFO L225 Difference]: With dead ends: 31 [2023-04-01 11:11:09,174 INFO L226 Difference]: Without dead ends: 13 [2023-04-01 11:11:09,177 INFO L412 NwaCegarLoop]: 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 [2023-04-01 11:11:09,183 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:11:09,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:11:09,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-04-01 11:11:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-04-01 11:11:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:11:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-04-01 11:11:09,213 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2023-04-01 11:11:09,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:11:09,214 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-04-01 11:11:09,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:11:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-04-01 11:11:09,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-04-01 11:11:09,214 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:11:09,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:11:09,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:11:09,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:11:09,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:11:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash -707580461, now seen corresponding path program 1 times [2023-04-01 11:11:09,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:11:09,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506661156] [2023-04-01 11:11:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:11:09,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:11:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:11:09,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:11:09,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:11:09,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506661156] [2023-04-01 11:11:09,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506661156] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:11:09,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:11:09,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 11:11:09,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181332613] [2023-04-01 11:11:09,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:11:09,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 11:11:09,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:11:09,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 11:11:09,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 11:11:09,669 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:11:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:11:09,761 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2023-04-01 11:11:09,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 11:11:09,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-04-01 11:11:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:11:09,763 INFO L225 Difference]: With dead ends: 21 [2023-04-01 11:11:09,763 INFO L226 Difference]: Without dead ends: 15 [2023-04-01 11:11:09,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 11:11:09,765 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:11:09,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:11:09,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-04-01 11:11:09,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-04-01 11:11:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:11:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-04-01 11:11:09,769 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2023-04-01 11:11:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:11:09,769 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-04-01 11:11:09,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:11:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-04-01 11:11:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-04-01 11:11:09,770 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:11:09,770 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:11:09,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 11:11:09,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:11:09,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:11:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash -329977906, now seen corresponding path program 1 times [2023-04-01 11:11:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:11:09,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800558043] [2023-04-01 11:11:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:11:09,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:11:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 11:11:09,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 11:11:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 11:11:09,817 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 11:11:09,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 11:11:09,818 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 11:11:09,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 11:11:09,822 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-01 11:11:09,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 11:11:09,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 11:11:09 BoogieIcfgContainer [2023-04-01 11:11:09,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 11:11:09,852 INFO L158 Benchmark]: Toolchain (without parser) took 1542.00ms. Allocated memory is still 265.3MB. Free memory was 212.5MB in the beginning and 189.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.9MB. Max. memory is 8.0GB. [2023-04-01 11:11:09,852 INFO L158 Benchmark]: CDTParser took 3.04ms. Allocated memory is still 182.5MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:11:09,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.42ms. Allocated memory is still 265.3MB. Free memory was 212.2MB in the beginning and 202.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-04-01 11:11:09,855 INFO L158 Benchmark]: Boogie Preprocessor took 24.51ms. Allocated memory is still 265.3MB. Free memory was 202.4MB in the beginning and 201.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 11:11:09,859 INFO L158 Benchmark]: RCFGBuilder took 260.41ms. Allocated memory is still 265.3MB. Free memory was 201.0MB in the beginning and 189.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 11:11:09,861 INFO L158 Benchmark]: TraceAbstraction took 1065.45ms. Allocated memory is still 265.3MB. Free memory was 189.1MB in the beginning and 189.5MB in the end (delta: -344.7kB). Peak memory consumption was 840.7kB. Max. memory is 8.0GB. [2023-04-01 11:11:09,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.04ms. Allocated memory is still 182.5MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 184.42ms. Allocated memory is still 265.3MB. Free memory was 212.2MB in the beginning and 202.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.51ms. Allocated memory is still 265.3MB. Free memory was 202.4MB in the beginning and 201.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 260.41ms. Allocated memory is still 265.3MB. Free memory was 201.0MB in the beginning and 189.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1065.45ms. Allocated memory is still 265.3MB. Free memory was 189.1MB in the beginning and 189.5MB in the end (delta: -344.7kB). Peak memory consumption was 840.7kB. 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 - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 16. Possible FailurePath: [L12] unsigned int x = 5; VAL [x=5] [L13] COND TRUE __VERIFIER_nondet_int() [L14] x += 8 VAL [x=13] [L13] COND FALSE !(__VERIFIER_nondet_int()) [L16] EXPR x & 5 VAL [x & 5=0, x=13] [L16] CALL __VERIFIER_assert((x & 5) == 5) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-04-01 11:11:09,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...