/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/loops/terminator_03-2_abstracted.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:02:48,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:02:48,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:02:48,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:02:48,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:02:48,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:02:48,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:02:48,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:02:48,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:02:48,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:02:48,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:02:48,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:02:48,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:02:48,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:02:48,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:02:48,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:02:48,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:02:48,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:02:48,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:02:48,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:02:48,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:02:48,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:02:48,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:02:48,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:02:48,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:02:48,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:02:48,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:02:48,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:02:48,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:02:48,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:02:48,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:02:48,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:02:48,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:02:48,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:02:48,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:02:48,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:02:48,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:02:48,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:02:48,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:02:48,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:02:48,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:02:48,125 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 11:02:48,153 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:02:48,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:02:48,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:02:48,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:02:48,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:02:48,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:02:48,155 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:02:48,155 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:02:48,155 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:02:48,155 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:02:48,156 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:02:48,156 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:02:48,156 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:02:48,156 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:02:48,156 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:02:48,156 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:02:48,157 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:02:48,157 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:02:48,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:02:48,157 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:02:48,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:02:48,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:02:48,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:02:48,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:02:48,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:02:48,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:02:48,158 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:02:48,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:02:48,159 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:02:48,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:02:48,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:02:48,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:02:48,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:02:48,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:02:48,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:02:48,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:02:48,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:02:48,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:02:48,401 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:02:48,402 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:02:48,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_03-2_abstracted.i [2023-04-01 11:02:49,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:02:49,741 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:02:49,742 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_03-2_abstracted.i [2023-04-01 11:02:49,746 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dbcc1ef3/07767e0aadba468e9dbeb65e159eb25f/FLAGd74fe3cd3 [2023-04-01 11:02:49,756 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dbcc1ef3/07767e0aadba468e9dbeb65e159eb25f [2023-04-01 11:02:49,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:02:49,759 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:02:49,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:02:49,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:02:49,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:02:49,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd5f491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49, skipping insertion in model container [2023-04-01 11:02:49,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:02:49,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:02:49,892 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/loops/terminator_03-2_abstracted.i[913,926] [2023-04-01 11:02:49,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:02:49,907 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:02:49,917 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/loops/terminator_03-2_abstracted.i[913,926] [2023-04-01 11:02:49,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:02:49,932 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:02:49,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49 WrapperNode [2023-04-01 11:02:49,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:02:49,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:02:49,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:02:49,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:02:49,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:02:49,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:02:49,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:02:49,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:02:49,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (1/1) ... [2023-04-01 11:02:49,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:02:49,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:02:49,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 11:02:50,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 11:02:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:02:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:02:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:02:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 11:02:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 11:02:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:02:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:02:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:02:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 11:02:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 11:02:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:02:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:02:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:02:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:02:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:02:50,074 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:02:50,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:02:50,167 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:02:50,211 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:02:50,211 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 11:02:50,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:02:50 BoogieIcfgContainer [2023-04-01 11:02:50,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:02:50,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:02:50,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:02:50,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:02:50,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:02:49" (1/3) ... [2023-04-01 11:02:50,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3042dec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:02:50, skipping insertion in model container [2023-04-01 11:02:50,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:02:49" (2/3) ... [2023-04-01 11:02:50,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3042dec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:02:50, skipping insertion in model container [2023-04-01 11:02:50,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:02:50" (3/3) ... [2023-04-01 11:02:50,236 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03-2_abstracted.i [2023-04-01 11:02:50,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:02:50,267 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:02:50,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:02:50,338 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;@661b9f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:02:50,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:02:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 11:02:50,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-04-01 11:02:50,347 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:02:50,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:02:50,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:02:50,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:02:50,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1880215928, now seen corresponding path program 1 times [2023-04-01 11:02:50,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:02:50,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676401222] [2023-04-01 11:02:50,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:02:50,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:02:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:02:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 11:02:50,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:02:50,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676401222] [2023-04-01 11:02:50,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676401222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:02:50,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:02:50,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 11:02:50,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184370786] [2023-04-01 11:02:50,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:02:50,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 11:02:50,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:02:50,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 11:02:50,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 11:02:50,736 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:02:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:02:50,809 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2023-04-01 11:02:50,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 11:02:50,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 10 [2023-04-01 11:02:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:02:50,817 INFO L225 Difference]: With dead ends: 27 [2023-04-01 11:02:50,817 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 11:02:50,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 11:02:50,823 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:02:50,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 43 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:02:50,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 11:02:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 11:02:50,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 11:02:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 11:02:50,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-04-01 11:02:50,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:02:50,842 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 11:02:50,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 11:02:50,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 11:02:50,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 11:02:50,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 11:02:50,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:02:50,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 11:02:50,859 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 11:02:50,860 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 11:02:50,860 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 14 16) no Hoare annotation was computed. [2023-04-01 11:02:50,860 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2023-04-01 11:02:50,860 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-04-01 11:02:50,860 INFO L895 garLoopResultBuilder]: At program point L29-1(lines 29 34) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~y~0 0)) [2023-04-01 11:02:50,861 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 25 37) no Hoare annotation was computed. [2023-04-01 11:02:50,861 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 25 37) no Hoare annotation was computed. [2023-04-01 11:02:50,861 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 25 37) the Hoare annotation is: true [2023-04-01 11:02:50,861 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-04-01 11:02:50,861 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:02:50,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:02:50,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:02:50,862 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-01 11:02:50,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 11:02:50,862 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:02:50,862 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2023-04-01 11:02:50,862 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2023-04-01 11:02:50,862 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 17 22) the Hoare annotation is: true [2023-04-01 11:02:50,862 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-04-01 11:02:50,863 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-04-01 11:02:50,863 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-04-01 11:02:50,866 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-04-01 11:02:50,868 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 11:02:50,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 11:02:50 BoogieIcfgContainer [2023-04-01 11:02:50,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 11:02:50,872 INFO L158 Benchmark]: Toolchain (without parser) took 1113.43ms. Allocated memory is still 174.1MB. Free memory was 142.4MB in the beginning and 86.4MB in the end (delta: 56.0MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2023-04-01 11:02:50,873 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:02:50,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.05ms. Allocated memory is still 174.1MB. Free memory was 142.4MB in the beginning and 132.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-04-01 11:02:50,873 INFO L158 Benchmark]: Boogie Preprocessor took 18.87ms. Allocated memory is still 174.1MB. Free memory was 132.3MB in the beginning and 130.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 11:02:50,874 INFO L158 Benchmark]: RCFGBuilder took 260.84ms. Allocated memory is still 174.1MB. Free memory was 130.4MB in the beginning and 117.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 11:02:50,874 INFO L158 Benchmark]: TraceAbstraction took 656.21ms. Allocated memory is still 174.1MB. Free memory was 117.2MB in the beginning and 86.4MB in the end (delta: 30.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-04-01 11:02:50,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 173.05ms. Allocated memory is still 174.1MB. Free memory was 142.4MB in the beginning and 132.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.87ms. Allocated memory is still 174.1MB. Free memory was 132.3MB in the beginning and 130.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 260.84ms. Allocated memory is still 174.1MB. Free memory was 130.4MB in the beginning and 117.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 656.21ms. Allocated memory is still 174.1MB. Free memory was 117.2MB in the beginning and 86.4MB in the end (delta: 30.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-04-01 11:02:50,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...