/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 OctagonDomain -i ../sv-benchmarks/c/eca-rers2012/Problem16_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:20:39,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:20:39,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:20:39,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:20:39,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:20:39,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:20:39,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:20:39,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:20:39,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:20:39,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:20:39,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:20:39,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:20:39,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:20:39,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:20:39,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:20:39,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:20:39,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:20:39,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:20:39,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:20:39,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:20:39,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:20:39,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:20:39,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:20:39,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:20:39,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:20:39,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:20:39,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:20:39,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:20:39,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:20:39,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:20:39,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:20:39,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:20:39,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:20:39,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:20:39,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:20:39,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:20:39,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:20:39,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:20:39,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:20:39,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:20:39,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:20:39,273 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 04:20:39,292 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:20:39,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:20:39,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:20:39,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:20:39,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:20:39,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:20:39,294 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:20:39,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:20:39,294 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:20:39,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:20:39,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:20:39,295 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:20:39,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:20:39,296 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:20:39,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:20:39,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:20:39,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:20:39,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:20:39,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:20:39,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:20:39,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:20:39,298 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:20:39,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:20:39,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:20:39,299 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:20:39,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:20:39,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:20:39,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:20:39,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:20:39,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:20:39,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:20:39,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:20:39,510 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:20:39,512 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:20:39,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label58.c [2023-04-01 04:20:40,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:20:40,842 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:20:40,842 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label58.c [2023-04-01 04:20:40,858 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e60289e/681bceb287ec4e2ca7126c76d1d91671/FLAG0218d2464 [2023-04-01 04:20:40,882 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e60289e/681bceb287ec4e2ca7126c76d1d91671 [2023-04-01 04:20:40,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:20:40,885 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:20:40,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:20:40,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:20:40,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:20:40,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:20:40" (1/1) ... [2023-04-01 04:20:40,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1253504e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:40, skipping insertion in model container [2023-04-01 04:20:40,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:20:40" (1/1) ... [2023-04-01 04:20:40,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:20:40,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:20:41,091 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/eca-rers2012/Problem16_label58.c[5405,5418] [2023-04-01 04:20:41,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:20:41,389 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:20:41,416 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/eca-rers2012/Problem16_label58.c[5405,5418] [2023-04-01 04:20:41,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:20:41,565 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:20:41,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41 WrapperNode [2023-04-01 04:20:41,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:20:41,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:20:41,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:20:41,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:20:41,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:20:41,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:20:41,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:20:41,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:20:41,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (1/1) ... [2023-04-01 04:20:41,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:20:41,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:20:41,741 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 04:20:41,764 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 04:20:41,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:20:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:20:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:20:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 04:20:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 04:20:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:20:41,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 04:20:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 04:20:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:20:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:20:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:20:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:20:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:20:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:20:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:20:41,849 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:20:41,851 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:20:43,337 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:20:44,174 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:20:44,174 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 04:20:44,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:20:44 BoogieIcfgContainer [2023-04-01 04:20:44,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:20:44,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:20:44,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:20:44,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:20:44,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:20:40" (1/3) ... [2023-04-01 04:20:44,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd9cbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:20:44, skipping insertion in model container [2023-04-01 04:20:44,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:20:41" (2/3) ... [2023-04-01 04:20:44,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd9cbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:20:44, skipping insertion in model container [2023-04-01 04:20:44,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:20:44" (3/3) ... [2023-04-01 04:20:44,187 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label58.c [2023-04-01 04:20:44,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:20:44,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:20:44,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:20:44,257 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;@57dd3e8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:20:44,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:20:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 234 states have (on average 1.9572649572649572) internal successors, (458), 235 states have internal predecessors, (458), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 04:20:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-04-01 04:20:44,265 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:20:44,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:20:44,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:20:44,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:20:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash -706729047, now seen corresponding path program 1 times [2023-04-01 04:20:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:20:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853209036] [2023-04-01 04:20:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:44,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:20:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:44,500 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 04:20:44,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:20:44,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853209036] [2023-04-01 04:20:44,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853209036] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:20:44,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:20:44,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 04:20:44,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554915002] [2023-04-01 04:20:44,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:20:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 04:20:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:20:44,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 04:20:44,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:20:44,523 INFO L87 Difference]: Start difference. First operand has 244 states, 234 states have (on average 1.9572649572649572) internal successors, (458), 235 states have internal predecessors, (458), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) 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 04:20:45,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:20:45,525 INFO L93 Difference]: Finished difference Result 718 states and 1389 transitions. [2023-04-01 04:20:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 04:20:45,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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 04:20:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:20:45,539 INFO L225 Difference]: With dead ends: 718 [2023-04-01 04:20:45,539 INFO L226 Difference]: Without dead ends: 471 [2023-04-01 04:20:45,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:20:45,547 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 307 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 04:20:45,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 54 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 04:20:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-04-01 04:20:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 462. [2023-04-01 04:20:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 452 states have (on average 1.915929203539823) internal successors, (866), 452 states have internal predecessors, (866), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-04-01 04:20:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 877 transitions. [2023-04-01 04:20:45,624 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 877 transitions. Word has length 11 [2023-04-01 04:20:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:20:45,625 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 877 transitions. [2023-04-01 04:20:45,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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 04:20:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 877 transitions. [2023-04-01 04:20:45,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-01 04:20:45,628 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:20:45,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:20:45,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:20:45,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:20:45,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:20:45,629 INFO L85 PathProgramCache]: Analyzing trace with hash -590993738, now seen corresponding path program 1 times [2023-04-01 04:20:45,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:20:45,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415035672] [2023-04-01 04:20:45,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:45,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:20:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:20:45,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:20:45,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415035672] [2023-04-01 04:20:45,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415035672] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:20:45,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:20:45,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:20:45,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414079318] [2023-04-01 04:20:45,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:20:45,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:20:45,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:20:45,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:20:45,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:20:45,795 INFO L87 Difference]: Start difference. First operand 462 states and 877 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:20:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:20:46,956 INFO L93 Difference]: Finished difference Result 1390 states and 2669 transitions. [2023-04-01 04:20:46,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 04:20:46,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-04-01 04:20:46,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:20:46,978 INFO L225 Difference]: With dead ends: 1390 [2023-04-01 04:20:46,979 INFO L226 Difference]: Without dead ends: 933 [2023-04-01 04:20:46,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-04-01 04:20:46,982 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 853 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 04:20:46,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 43 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 04:20:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2023-04-01 04:20:47,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 917. [2023-04-01 04:20:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 900 states have (on average 1.8311111111111111) internal successors, (1648), 903 states have internal predecessors, (1648), 7 states have call successors, (7), 7 states have call predecessors, (7), 9 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-04-01 04:20:47,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1678 transitions. [2023-04-01 04:20:47,026 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1678 transitions. Word has length 44 [2023-04-01 04:20:47,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:20:47,026 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1678 transitions. [2023-04-01 04:20:47,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:20:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1678 transitions. [2023-04-01 04:20:47,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-01 04:20:47,031 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:20:47,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:20:47,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:20:47,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:20:47,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:20:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1829549261, now seen corresponding path program 1 times [2023-04-01 04:20:47,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:20:47,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654296323] [2023-04-01 04:20:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:47,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:20:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 04:20:47,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:20:47,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654296323] [2023-04-01 04:20:47,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654296323] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:20:47,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078827708] [2023-04-01 04:20:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:47,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:20:47,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:20:47,324 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 04:20:47,325 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 04:20:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:47,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-01 04:20:47,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:20:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 04:20:47,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 04:20:47,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078827708] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:20:47,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 04:20:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-04-01 04:20:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464087246] [2023-04-01 04:20:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:20:47,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:20:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:20:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:20:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-01 04:20:47,590 INFO L87 Difference]: Start difference. First operand 917 states and 1678 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:20:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:20:48,765 INFO L93 Difference]: Finished difference Result 2749 states and 5075 transitions. [2023-04-01 04:20:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 04:20:48,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 95 [2023-04-01 04:20:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:20:48,776 INFO L225 Difference]: With dead ends: 2749 [2023-04-01 04:20:48,776 INFO L226 Difference]: Without dead ends: 1837 [2023-04-01 04:20:48,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-01 04:20:48,781 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 887 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 04:20:48,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 37 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 04:20:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2023-04-01 04:20:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1168. [2023-04-01 04:20:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1140 states have (on average 1.7456140350877194) internal successors, (1990), 1148 states have internal predecessors, (1990), 10 states have call successors, (10), 10 states have call predecessors, (10), 17 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) [2023-04-01 04:20:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 2048 transitions. [2023-04-01 04:20:48,823 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 2048 transitions. Word has length 95 [2023-04-01 04:20:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:20:48,824 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 2048 transitions. [2023-04-01 04:20:48,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:20:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 2048 transitions. [2023-04-01 04:20:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-01 04:20:48,833 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:20:48,833 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:20:48,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 04:20:49,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:20:49,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:20:49,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:20:49,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1613613507, now seen corresponding path program 1 times [2023-04-01 04:20:49,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:20:49,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074256899] [2023-04-01 04:20:49,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:20:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 15 proven. 76 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-04-01 04:20:49,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:20:49,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074256899] [2023-04-01 04:20:49,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074256899] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:20:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72045627] [2023-04-01 04:20:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:49,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:20:49,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:20:49,369 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 04:20:49,383 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 04:20:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:49,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-01 04:20:49,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:20:49,595 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-01 04:20:49,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 04:20:49,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72045627] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:20:49,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 04:20:49,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-04-01 04:20:49,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838978792] [2023-04-01 04:20:49,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:20:49,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:20:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:20:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:20:49,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-01 04:20:49,597 INFO L87 Difference]: Start difference. First operand 1168 states and 2048 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:20:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:20:50,696 INFO L93 Difference]: Finished difference Result 2591 states and 4491 transitions. [2023-04-01 04:20:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 04:20:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 151 [2023-04-01 04:20:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:20:50,703 INFO L225 Difference]: With dead ends: 2591 [2023-04-01 04:20:50,703 INFO L226 Difference]: Without dead ends: 1428 [2023-04-01 04:20:50,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-04-01 04:20:50,706 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 799 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:20:50,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 46 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 04:20:50,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2023-04-01 04:20:50,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1410. [2023-04-01 04:20:50,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1374 states have (on average 1.5254730713245996) internal successors, (2096), 1386 states have internal predecessors, (2096), 12 states have call successors, (12), 12 states have call predecessors, (12), 23 states have return successors, (68), 11 states have call predecessors, (68), 11 states have call successors, (68) [2023-04-01 04:20:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2176 transitions. [2023-04-01 04:20:50,737 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2176 transitions. Word has length 151 [2023-04-01 04:20:50,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:20:50,738 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 2176 transitions. [2023-04-01 04:20:50,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 04:20:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2176 transitions. [2023-04-01 04:20:50,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-01 04:20:50,740 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:20:50,740 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:20:50,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 04:20:50,945 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,SelfDestructingSolverStorable3 [2023-04-01 04:20:50,946 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:20:50,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:20:50,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1585713091, now seen corresponding path program 1 times [2023-04-01 04:20:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:20:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591967464] [2023-04-01 04:20:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:50,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:20:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 82 proven. 82 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-04-01 04:20:51,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:20:51,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591967464] [2023-04-01 04:20:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591967464] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:20:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070482555] [2023-04-01 04:20:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:20:51,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:20:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:20:51,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:20:51,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 04:20:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:20:51,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 04:20:51,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:20:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 230 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-01 04:20:51,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:20:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 82 proven. 82 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-04-01 04:20:51,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070482555] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:20:51,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1069844278] [2023-04-01 04:20:51,608 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2023-04-01 04:20:51,609 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:20:51,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:20:51,614 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:20:51,615 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:20:51,721 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 46 for LOIs [2023-04-01 04:20:51,888 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 45 [2023-04-01 04:21:01,975 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 180770 conjuctions. This might take some time... [2023-04-01 04:21:33,995 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 2254 conjuctions.