/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:43:17,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:43:17,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:43:17,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:43:17,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:43:17,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:43:17,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:43:17,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:43:17,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:43:17,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:43:17,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:43:17,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:43:17,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:43:17,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:43:17,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:43:17,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:43:17,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:43:17,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:43:17,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:43:17,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:43:17,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:43:17,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:43:17,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:43:17,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:43:17,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:43:17,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:43:17,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:43:17,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:43:17,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:43:17,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:43:17,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:43:17,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:43:17,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:43:17,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:43:17,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:43:17,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:43:17,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:43:17,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:43:17,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:43:17,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:43:17,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:43:17,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:43:17,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:43:17,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:43:17,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:43:17,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:43:17,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:43:17,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:43:17,554 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:43:17,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:43:17,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:43:17,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:43:17,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:43:17,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:43:17,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:43:17,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:43:17,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:43:17,557 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:43:17,557 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:43:17,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:43:17,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:43:17,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:43:17,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:43:17,758 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:43:17,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound10.c [2022-01-10 20:43:17,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b92747c58/5cce1878fc3b49288faf0d2b7912a85e/FLAG46d4576f7 [2022-01-10 20:43:18,147 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:43:18,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound10.c [2022-01-10 20:43:18,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b92747c58/5cce1878fc3b49288faf0d2b7912a85e/FLAG46d4576f7 [2022-01-10 20:43:18,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b92747c58/5cce1878fc3b49288faf0d2b7912a85e [2022-01-10 20:43:18,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:43:18,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:43:18,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:43:18,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:43:18,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:43:18,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173c246d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18, skipping insertion in model container [2022-01-10 20:43:18,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:43:18,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:43:18,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound10.c[712,725] [2022-01-10 20:43:18,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:43:18,340 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:43:18,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound10.c[712,725] [2022-01-10 20:43:18,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:43:18,369 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:43:18,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18 WrapperNode [2022-01-10 20:43:18,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:43:18,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:43:18,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:43:18,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:43:18,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,395 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2022-01-10 20:43:18,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:43:18,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:43:18,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:43:18,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:43:18,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:43:18,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:43:18,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:43:18,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:43:18,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:43:18,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:43:18,448 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) [2022-01-10 20:43:18,471 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 [2022-01-10 20:43:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:43:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:43:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:43:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:43:18,527 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:43:18,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:43:18,605 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:43:18,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:43:18,608 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:43:18,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:43:18 BoogieIcfgContainer [2022-01-10 20:43:18,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:43:18,610 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:43:18,610 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:43:18,611 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:43:18,613 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:43:18" (1/1) ... [2022-01-10 20:43:18,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:43:18 BasicIcfg [2022-01-10 20:43:18,647 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:43:18,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:43:18,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:43:18,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:43:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:43:18" (1/4) ... [2022-01-10 20:43:18,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673f282d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:43:18, skipping insertion in model container [2022-01-10 20:43:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:43:18" (2/4) ... [2022-01-10 20:43:18,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673f282d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:43:18, skipping insertion in model container [2022-01-10 20:43:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:43:18" (3/4) ... [2022-01-10 20:43:18,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673f282d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:43:18, skipping insertion in model container [2022-01-10 20:43:18,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:43:18" (4/4) ... [2022-01-10 20:43:18,651 INFO L111 eAbstractionObserver]: Analyzing ICFG freire1_unwindbound10.cTransformedIcfg [2022-01-10 20:43:18,667 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:43:18,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 20:43:18,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:43:18,719 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 20:43:18,719 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 20:43:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-01-10 20:43:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 20:43:18,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:43:18,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 20:43:18,730 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:43:18,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:43:18,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2016054008, now seen corresponding path program 1 times [2022-01-10 20:43:18,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:43:18,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116571782] [2022-01-10 20:43:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:18,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:43:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:43:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:43:18,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:43:18,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116571782] [2022-01-10 20:43:18,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116571782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:43:18,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:43:18,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:43:18,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988909664] [2022-01-10 20:43:18,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:43:18,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:43:18,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:43:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:43:18,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:43:18,912 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-01-10 20:43:18,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:43:18,925 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-01-10 20:43:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:43:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2022-01-10 20:43:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:43:18,931 INFO L225 Difference]: With dead ends: 32 [2022-01-10 20:43:18,931 INFO L226 Difference]: Without dead ends: 13 [2022-01-10 20:43:18,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:43:18,938 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:43:18,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:43:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-10 20:43:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-01-10 20:43:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2022-01-10 20:43:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-01-10 20:43:18,959 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2022-01-10 20:43:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:43:18,959 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-01-10 20:43:18,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-01-10 20:43:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-01-10 20:43:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 20:43:18,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:43:18,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 20:43:18,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:43:18,962 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:43:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:43:18,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2016022230, now seen corresponding path program 1 times [2022-01-10 20:43:18,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:43:18,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032713496] [2022-01-10 20:43:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:43:18,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:43:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:43:19,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 20:43:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:43:19,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 20:43:19,056 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 20:43:19,057 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 20:43:19,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 20:43:19,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:43:19,061 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 20:43:19,062 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 20:43:19,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:43:19 BasicIcfg [2022-01-10 20:43:19,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 20:43:19,089 INFO L158 Benchmark]: Toolchain (without parser) took 925.94ms. Allocated memory is still 188.7MB. Free memory was 137.9MB in the beginning and 124.4MB in the end (delta: 13.4MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,090 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 154.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:43:19,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.42ms. Allocated memory is still 188.7MB. Free memory was 137.6MB in the beginning and 164.3MB in the end (delta: -26.6MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.19ms. Allocated memory is still 188.7MB. Free memory was 164.3MB in the beginning and 162.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,092 INFO L158 Benchmark]: Boogie Preprocessor took 28.41ms. Allocated memory is still 188.7MB. Free memory was 162.7MB in the beginning and 161.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,094 INFO L158 Benchmark]: RCFGBuilder took 185.19ms. Allocated memory is still 188.7MB. Free memory was 161.7MB in the beginning and 152.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,094 INFO L158 Benchmark]: IcfgTransformer took 36.75ms. Allocated memory is still 188.7MB. Free memory was 152.2MB in the beginning and 149.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,094 INFO L158 Benchmark]: TraceAbstraction took 440.15ms. Allocated memory is still 188.7MB. Free memory was 149.1MB in the beginning and 124.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-10 20:43:19,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 154.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 206.42ms. Allocated memory is still 188.7MB. Free memory was 137.6MB in the beginning and 164.3MB in the end (delta: -26.6MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.19ms. Allocated memory is still 188.7MB. Free memory was 164.3MB in the beginning and 162.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.41ms. Allocated memory is still 188.7MB. Free memory was 162.7MB in the beginning and 161.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 185.19ms. Allocated memory is still 188.7MB. Free memory was 161.7MB in the beginning and 152.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 36.75ms. Allocated memory is still 188.7MB. Free memory was 152.2MB in the beginning and 149.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 440.15ms. Allocated memory is still 188.7MB. Free memory was 149.1MB in the beginning and 124.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.div at line 29, overapproximation of fp.to_sbv at line 33. Possible FailurePath: [L24] int counter = 0; VAL [counter=0] [L26] int r; [L27] double a, x; [L28] a = __VERIFIER_nondet_double() [L29] x = a / 2.0 [L30] r = 0 VAL [counter=0, r=0] [L32] EXPR counter++ VAL [counter=1, counter++=0, r=0] [L32] COND TRUE counter++<10 [L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, counter=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 could not prove your program: unable to determine feasibility of some traces [2022-01-10 20:43:19,129 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...