./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 266436f0336fa87343e9fe2aac074f47fa1a621a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 10:02:05,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 10:02:05,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 10:02:05,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 10:02:05,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 10:02:05,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 10:02:05,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 10:02:05,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 10:02:05,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 10:02:05,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 10:02:05,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 10:02:05,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 10:02:05,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 10:02:05,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 10:02:05,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 10:02:05,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 10:02:05,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 10:02:05,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 10:02:05,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 10:02:05,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 10:02:05,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 10:02:05,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 10:02:05,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 10:02:05,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 10:02:05,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 10:02:05,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 10:02:05,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 10:02:05,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 10:02:05,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 10:02:05,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 10:02:05,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 10:02:05,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 10:02:05,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 10:02:05,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 10:02:05,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 10:02:05,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 10:02:05,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 10:02:05,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 10:02:05,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 10:02:05,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 10:02:05,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 10:02:05,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 10:02:05,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 10:02:05,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 10:02:05,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 10:02:05,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 10:02:05,505 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 10:02:05,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 10:02:05,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 10:02:05,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 10:02:05,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 10:02:05,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 10:02:05,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 10:02:05,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 10:02:05,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 10:02:05,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 10:02:05,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 10:02:05,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 10:02:05,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 10:02:05,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 10:02:05,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 10:02:05,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 10:02:05,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 10:02:05,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 10:02:05,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 10:02:05,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 10:02:05,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 10:02:05,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 10:02:05,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 10:02:05,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 10:02:05,511 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 266436f0336fa87343e9fe2aac074f47fa1a621a [2021-07-05 10:02:05,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 10:02:05,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 10:02:05,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 10:02:05,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 10:02:05,876 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 10:02:05,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c [2021-07-05 10:02:05,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a22166f0/88008880490c4a86a56164a39eb334c6/FLAG810471a37 [2021-07-05 10:02:06,348 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 10:02:06,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c [2021-07-05 10:02:06,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a22166f0/88008880490c4a86a56164a39eb334c6/FLAG810471a37 [2021-07-05 10:02:06,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a22166f0/88008880490c4a86a56164a39eb334c6 [2021-07-05 10:02:06,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 10:02:06,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 10:02:06,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 10:02:06,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 10:02:06,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 10:02:06,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:06,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c2a521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06, skipping insertion in model container [2021-07-05 10:02:06,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:06,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 10:02:06,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 10:02:06,968 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c[946,959] [2021-07-05 10:02:06,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 10:02:06,977 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 10:02:06,988 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c[946,959] [2021-07-05 10:02:06,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 10:02:06,998 INFO L208 MainTranslator]: Completed translation [2021-07-05 10:02:06,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06 WrapperNode [2021-07-05 10:02:06,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 10:02:06,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 10:02:06,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 10:02:06,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 10:02:07,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 10:02:07,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 10:02:07,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 10:02:07,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 10:02:07,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 10:02:07,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 10:02:07,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 10:02:07,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 10:02:07,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (1/1) ... [2021-07-05 10:02:07,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 10:02:07,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 10:02:07,090 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) [2021-07-05 10:02:07,095 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 [2021-07-05 10:02:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 10:02:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-07-05 10:02:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-07-05 10:02:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 10:02:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-07-05 10:02:07,124 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-07-05 10:02:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 10:02:07,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 10:02:07,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 10:02:07,389 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-05 10:02:07,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 10:02:07 BoogieIcfgContainer [2021-07-05 10:02:07,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 10:02:07,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 10:02:07,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 10:02:07,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 10:02:07,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 10:02:06" (1/3) ... [2021-07-05 10:02:07,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcce721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 10:02:07, skipping insertion in model container [2021-07-05 10:02:07,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 10:02:06" (2/3) ... [2021-07-05 10:02:07,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcce721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 10:02:07, skipping insertion in model container [2021-07-05 10:02:07,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 10:02:07" (3/3) ... [2021-07-05 10:02:07,396 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_2-1.c [2021-07-05 10:02:07,403 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 10:02:07,403 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 10:02:07,478 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 10:02:07,483 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 10:02:07,483 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 10:02:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-07-05 10:02:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 10:02:07,500 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 10:02:07,501 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 10:02:07,501 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 10:02:07,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 10:02:07,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1123300790, now seen corresponding path program 1 times [2021-07-05 10:02:07,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 10:02:07,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403337182] [2021-07-05 10:02:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 10:02:07,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 10:02:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:07,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:07,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:07,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:07,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:07,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:07,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-07-05 10:02:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:07,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:07,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:07,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:07,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 10:02:07,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 10:02:07,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403337182] [2021-07-05 10:02:07,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403337182] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 10:02:07,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 10:02:07,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 10:02:07,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890463007] [2021-07-05 10:02:07,747 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 10:02:07,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 10:02:07,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 10:02:07,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 10:02:07,768 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-05 10:02:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 10:02:07,898 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-07-05 10:02:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 10:02:07,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-07-05 10:02:07,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 10:02:07,908 INFO L225 Difference]: With dead ends: 39 [2021-07-05 10:02:07,909 INFO L226 Difference]: Without dead ends: 27 [2021-07-05 10:02:07,912 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 10:02:07,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-07-05 10:02:07,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-07-05 10:02:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-07-05 10:02:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-07-05 10:02:07,953 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 10 [2021-07-05 10:02:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 10:02:07,954 INFO L442 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-07-05 10:02:07,954 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-05 10:02:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-07-05 10:02:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 10:02:07,956 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 10:02:07,956 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 10:02:07,957 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 10:02:07,957 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 10:02:07,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 10:02:07,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1177745932, now seen corresponding path program 1 times [2021-07-05 10:02:07,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 10:02:07,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445232152] [2021-07-05 10:02:07,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 10:02:07,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 10:02:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-07-05 10:02:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 10:02:08,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 10:02:08,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445232152] [2021-07-05 10:02:08,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445232152] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 10:02:08,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 10:02:08,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 10:02:08,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112586806] [2021-07-05 10:02:08,038 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 10:02:08,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 10:02:08,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 10:02:08,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 10:02:08,040 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-05 10:02:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 10:02:08,083 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2021-07-05 10:02:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 10:02:08,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-07-05 10:02:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 10:02:08,085 INFO L225 Difference]: With dead ends: 33 [2021-07-05 10:02:08,085 INFO L226 Difference]: Without dead ends: 29 [2021-07-05 10:02:08,086 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 10:02:08,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-07-05 10:02:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-07-05 10:02:08,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-07-05 10:02:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-07-05 10:02:08,092 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2021-07-05 10:02:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 10:02:08,093 INFO L442 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-07-05 10:02:08,093 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-05 10:02:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-07-05 10:02:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-07-05 10:02:08,094 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 10:02:08,094 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 10:02:08,095 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 10:02:08,095 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 10:02:08,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 10:02:08,095 INFO L82 PathProgramCache]: Analyzing trace with hash 2110588723, now seen corresponding path program 1 times [2021-07-05 10:02:08,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 10:02:08,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063270685] [2021-07-05 10:02:08,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 10:02:08,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 10:02:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-07-05 10:02:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,158 INFO L142 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-07-05 10:02:08,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-07-05 10:02:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-07-05 10:02:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-05 10:02:08,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 10:02:08,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063270685] [2021-07-05 10:02:08,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063270685] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 10:02:08,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608945630] [2021-07-05 10:02:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 10:02:08,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 10:02:08,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 10:02:08,199 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) [2021-07-05 10:02:08,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-05 10:02:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 10:02:08,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-05 10:02:08,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-05 10:02:08,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 10:02:08,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 10:02:08,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-05 10:02:08,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 10:02:08,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 10:02:08,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 10:02:08,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 10:02:08,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-05 10:02:08,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 10:02:08,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 10:02:08,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 10:02:08,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 10:02:08,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-05 10:02:08,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 10:02:08,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-05 10:02:08,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 10:02:08,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 10:02:08,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 10:02:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-05 10:02:08,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608945630] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-05 10:02:08,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-05 10:02:08,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-07-05 10:02:08,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193610676] [2021-07-05 10:02:08,556 INFO L425 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-05 10:02:08,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 10:02:08,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-05 10:02:08,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-07-05 10:02:08,557 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 6 states have call successors, (6) [2021-07-05 10:02:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 10:02:08,722 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2021-07-05 10:02:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-05 10:02:08,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 6 states have call successors, (6) Word has length 23 [2021-07-05 10:02:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 10:02:08,726 INFO L225 Difference]: With dead ends: 55 [2021-07-05 10:02:08,726 INFO L226 Difference]: Without dead ends: 31 [2021-07-05 10:02:08,727 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 106.6ms TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-07-05 10:02:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-07-05 10:02:08,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-07-05 10:02:08,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-07-05 10:02:08,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-07-05 10:02:08,738 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23 [2021-07-05 10:02:08,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 10:02:08,738 INFO L442 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-07-05 10:02:08,740 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 6 states have call successors, (6) [2021-07-05 10:02:08,740 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2021-07-05 10:02:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-07-05 10:02:08,743 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 10:02:08,744 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 10:02:08,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-05 10:02:08,967 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-05 10:02:08,967 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 10:02:08,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 10:02:08,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1277869167, now seen corresponding path program 1 times [2021-07-05 10:02:08,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 10:02:08,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572716526] [2021-07-05 10:02:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 10:02:08,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 10:02:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 10:02:08,985 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 10:02:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 10:02:08,997 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 10:02:09,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 10:02:09,013 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 10:02:09,015 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-05 10:02:09,016 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 10:02:09,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 10:02:09 BoogieIcfgContainer [2021-07-05 10:02:09,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 10:02:09,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 10:02:09,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 10:02:09,047 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 10:02:09,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 10:02:07" (3/4) ... [2021-07-05 10:02:09,049 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 10:02:09,081 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 10:02:09,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 10:02:09,082 INFO L168 Benchmark]: Toolchain (without parser) took 2273.16 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 31.5 MB in the beginning and 49.8 MB in the end (delta: -18.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,083 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 10:02:09,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.27 ms. Allocated memory is still 56.6 MB. Free memory was 31.3 MB in the beginning and 36.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.67 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 39.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,083 INFO L168 Benchmark]: Boogie Preprocessor took 35.62 ms. Allocated memory is still 56.6 MB. Free memory was 39.7 MB in the beginning and 38.7 MB in the end (delta: 928.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,084 INFO L168 Benchmark]: RCFGBuilder took 325.39 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 25.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,084 INFO L168 Benchmark]: TraceAbstraction took 1654.64 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 25.1 MB in the beginning and 52.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,084 INFO L168 Benchmark]: Witness Printer took 35.61 ms. Allocated memory is still 83.9 MB. Free memory was 52.5 MB in the beginning and 49.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 10:02:09,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 184.27 ms. Allocated memory is still 56.6 MB. Free memory was 31.3 MB in the beginning and 36.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.67 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 39.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.62 ms. Allocated memory is still 56.6 MB. Free memory was 39.7 MB in the beginning and 38.7 MB in the end (delta: 928.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 325.39 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 25.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1654.64 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 25.1 MB in the beginning and 52.5 MB in the end (delta: -27.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Witness Printer took 35.61 ms. Allocated memory is still 83.9 MB. Free memory was 52.5 MB in the beginning and 49.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 41]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] int x = 2; [L39] CALL, EXPR fibo1(x) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); [L39] RET, EXPR fibo1(x) [L39] int result = fibo1(x); [L40] COND TRUE result == 1 [L41] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1542.8ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 12.9ms, AutomataDifference: 378.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 72 SDtfs, 51 SDslu, 232 SDs, 0 SdLazy, 195 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 183.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.0ms SsaConstructionTime, 99.5ms SatisfiabilityAnalysisTime, 548.6ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 3 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-07-05 10:02:09,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...