/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-regression/1_3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:48:54,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:48:54,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:48:54,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:48:54,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:48:54,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:48:54,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:48:54,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:48:54,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:48:54,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:48:54,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:48:54,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:48:54,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:48:54,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:48:54,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:48:54,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:48:54,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:48:54,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:48:54,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:48:54,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:48:54,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:48:54,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:48:54,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:48:54,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:48:54,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:48:54,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:48:54,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:48:54,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:48:54,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:48:54,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:48:54,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:48:54,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:48:54,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:48:54,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:48:54,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:48:54,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:48:54,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:48:54,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:48:54,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:48:54,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:48:54,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:48:54,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 04:48:54,448 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:48:54,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:48:54,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:48:54,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:48:54,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:48:54,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:48:54,449 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:48:54,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:48:54,450 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:48:54,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:48:54,451 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:48:54,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:48:54,451 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:48:54,451 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:48:54,451 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:48:54,451 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:48:54,451 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:48:54,452 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:48:54,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:48:54,452 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:48:54,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:48:54,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:48:54,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:48:54,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:48:54,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:48:54,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:48:54,453 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:48:54,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:48:54,454 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:48:54,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:48:54,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:48:54,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:48:54,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:48:54,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:48:54,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:48:54,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:48:54,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:48:54,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:48:54,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:48:54,677 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:48:54,677 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:48:54,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/1_3.i [2023-04-01 04:48:55,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:48:56,048 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:48:56,049 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/1_3.i [2023-04-01 04:48:56,054 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1147eafdb/3deef9df6db044b5a3f03d55579a391a/FLAG8d45ca753 [2023-04-01 04:48:56,073 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1147eafdb/3deef9df6db044b5a3f03d55579a391a [2023-04-01 04:48:56,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:48:56,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:48:56,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:48:56,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:48:56,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:48:56,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7206c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56, skipping insertion in model container [2023-04-01 04:48:56,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:48:56,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:48:56,242 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/ldv-regression/1_3.i[285,298] [2023-04-01 04:48:56,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:48:56,285 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:48:56,296 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/ldv-regression/1_3.i[285,298] [2023-04-01 04:48:56,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:48:56,312 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:48:56,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56 WrapperNode [2023-04-01 04:48:56,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:48:56,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:48:56,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:48:56,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:48:56,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,339 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:48:56,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:48:56,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:48:56,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:48:56,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (1/1) ... [2023-04-01 04:48:56,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:48:56,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:48:56,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 04:48:56,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 04:48:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:48:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:48:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:48:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2023-04-01 04:48:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getrr [2023-04-01 04:48:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getPtr [2023-04-01 04:48:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure freePtr [2023-04-01 04:48:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:48:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:48:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:48:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:48:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:48:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2023-04-01 04:48:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 04:48:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 04:48:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure getrr [2023-04-01 04:48:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 04:48:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:48:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure getPtr [2023-04-01 04:48:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure freePtr [2023-04-01 04:48:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:48:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:48:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:48:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:48:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:48:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:48:56,524 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:48:56,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:48:56,711 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:48:56,739 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:48:56,739 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 04:48:56,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:48:56 BoogieIcfgContainer [2023-04-01 04:48:56,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:48:56,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:48:56,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:48:56,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:48:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:48:56" (1/3) ... [2023-04-01 04:48:56,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1439c4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:48:56, skipping insertion in model container [2023-04-01 04:48:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:48:56" (2/3) ... [2023-04-01 04:48:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1439c4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:48:56, skipping insertion in model container [2023-04-01 04:48:56,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:48:56" (3/3) ... [2023-04-01 04:48:56,765 INFO L112 eAbstractionObserver]: Analyzing ICFG 1_3.i [2023-04-01 04:48:56,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:48:56,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:48:56,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:48:56,835 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;@338776eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:48:56,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:48:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 13 states have internal predecessors, (13), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-01 04:48:56,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 04:48:56,848 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:48:56,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:48:56,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:48:56,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:48:56,854 INFO L85 PathProgramCache]: Analyzing trace with hash 779252093, now seen corresponding path program 1 times [2023-04-01 04:48:56,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:48:56,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537047010] [2023-04-01 04:48:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:48:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:48:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:48:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:48:57,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:48:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537047010] [2023-04-01 04:48:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537047010] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:48:57,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:48:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 04:48:57,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836272057] [2023-04-01 04:48:57,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:48:57,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 04:48:57,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:48:57,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 04:48:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 04:48:57,575 INFO L87 Difference]: Start difference. First operand has 26 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 13 states have internal predecessors, (13), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 04:48:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:48:57,687 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-04-01 04:48:57,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 04:48:57,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2023-04-01 04:48:57,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:48:57,697 INFO L225 Difference]: With dead ends: 41 [2023-04-01 04:48:57,697 INFO L226 Difference]: Without dead ends: 23 [2023-04-01 04:48:57,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-01 04:48:57,706 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 04:48:57,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 89 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 04:48:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-04-01 04:48:57,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-04-01 04:48:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 7 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 04:48:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2023-04-01 04:48:57,746 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 17 [2023-04-01 04:48:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:48:57,747 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2023-04-01 04:48:57,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 04:48:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2023-04-01 04:48:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-01 04:48:57,749 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:48:57,749 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:48:57,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:48:57,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:48:57,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:48:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash -957779691, now seen corresponding path program 1 times [2023-04-01 04:48:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:48:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148145739] [2023-04-01 04:48:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:48:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:48:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:48:57,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:48:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:48:57,828 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:48:57,829 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:48:57,830 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:48:57,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:48:57,835 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 04:48:57,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:48:57,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:48:57 BoogieIcfgContainer [2023-04-01 04:48:57,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:48:57,869 INFO L158 Benchmark]: Toolchain (without parser) took 1790.11ms. Allocated memory is still 235.9MB. Free memory was 186.3MB in the beginning and 179.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2023-04-01 04:48:57,870 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:48:57,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.33ms. Allocated memory is still 235.9MB. Free memory was 186.3MB in the beginning and 176.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 04:48:57,872 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 235.9MB. Free memory was 176.3MB in the beginning and 174.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 04:48:57,872 INFO L158 Benchmark]: RCFGBuilder took 398.70ms. Allocated memory is still 235.9MB. Free memory was 174.8MB in the beginning and 162.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 04:48:57,872 INFO L158 Benchmark]: TraceAbstraction took 1124.55ms. Allocated memory is still 235.9MB. Free memory was 161.6MB in the beginning and 179.1MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:48:57,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.33ms. Allocated memory is still 235.9MB. Free memory was 186.3MB in the beginning and 176.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 235.9MB. Free memory was 176.3MB in the beginning and 174.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 398.70ms. Allocated memory is still 235.9MB. Free memory was 174.8MB in the beginning and 162.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1124.55ms. Allocated memory is still 235.9MB. Free memory was 161.6MB in the beginning and 179.1MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] rr * ptr1 = 0; VAL [ptr1={0:0}] [L53] CALL, EXPR getPtr() [L39] CALL, EXPR getrr() [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; [L39] RET, EXPR getrr() VAL [getrr()={-1:0}] [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; [L53] RET, EXPR getPtr() VAL [getPtr()={-1:0}, ptr1={0:0}] [L53] ptr1 = getPtr() [L54] CALL freePtr(ptr1) VAL [ptr={-1:0}] [L46] EXPR ptr -> state VAL [ptr -> state=1, ptr={-1:0}, ptr={-1:0}] [L46] (ptr -> state == 1) ? (0) : __blast_assert () VAL [ptr -> state=1, ptr={-1:0}, ptr={-1:0}] [L47] ptr -> state = 2 [L54] RET freePtr(ptr1) VAL [ptr1={-1:0}] [L56] CALL freePtr(ptr1) VAL [ptr={-1:0}] [L46] EXPR ptr -> state VAL [ptr -> state=2, ptr={-1:0}, ptr={-1:0}] [L46] (ptr -> state == 1) ? (0) : __blast_assert () VAL [ptr -> state=2, ptr={-1:0}, ptr={-1:0}] [L46] CALL __blast_assert () [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 17 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 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 RESULT: Ultimate proved your program to be incorrect! [2023-04-01 04:48:57,900 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...