/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_SUM.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:59:36,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:59:36,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:59:36,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:59:36,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:59:36,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:59:36,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:59:36,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:59:36,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:59:36,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:59:36,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:59:36,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:59:36,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:59:36,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:59:36,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:59:36,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:59:36,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:59:36,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:59:36,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:59:36,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:59:36,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:59:36,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:59:36,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:59:36,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:59:36,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 01:59:36,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 01:59:36,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 01:59:36,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 01:59:36,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 01:59:36,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 01:59:36,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:59:36,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:59:36,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:59:36,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:59:36,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:59:36,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:59:36,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:59:36,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:59:36,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:59:36,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:59:36,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:59:36,405 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 01:59:36,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:59:36,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:59:36,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:59:36,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:59:36,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:59:36,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:59:36,440 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:59:36,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:59:36,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:59:36,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:59:36,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:59:36,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:59:36,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:59:36,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:59:36,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:59:36,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:59:36,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:59:36,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:59:36,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:59:36,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:59:36,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:59:36,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:59:36,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:59:36,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:59:36,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:59:36,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:59:36,445 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:59:36,445 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:59:36,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:59:36,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:59:36,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:59:36,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:59:36,716 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:59:36,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c [2022-01-11 01:59:36,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ad1d725/0a3b3ef691e84520a31f4604b9e1e348/FLAGd953b9ff4 [2022-01-11 01:59:37,138 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:59:37,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_1-2.c [2022-01-11 01:59:37,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ad1d725/0a3b3ef691e84520a31f4604b9e1e348/FLAGd953b9ff4 [2022-01-11 01:59:37,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ad1d725/0a3b3ef691e84520a31f4604b9e1e348 [2022-01-11 01:59:37,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:59:37,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:59:37,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:59:37,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:59:37,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:59:37,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21059c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37, skipping insertion in model container [2022-01-11 01:59:37,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:59:37,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:59:37,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_1-2.c[321,334] [2022-01-11 01:59:37,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:59:37,707 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:59:37,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_1-2.c[321,334] [2022-01-11 01:59:37,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:59:37,760 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:59:37,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37 WrapperNode [2022-01-11 01:59:37,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:59:37,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:59:37,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:59:37,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:59:37,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,790 INFO L137 Inliner]: procedures = 15, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-01-11 01:59:37,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:59:37,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:59:37,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:59:37,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:59:37,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:59:37,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:59:37,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:59:37,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:59:37,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (1/1) ... [2022-01-11 01:59:37,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:59:37,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:59:37,852 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) [2022-01-11 01:59:37,862 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 [2022-01-11 01:59:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:59:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:59:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 01:59:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 01:59:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:59:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:59:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 01:59:37,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 01:59:37,939 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:59:37,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:59:38,074 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:59:38,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:59:38,079 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 01:59:38,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:59:38 BoogieIcfgContainer [2022-01-11 01:59:38,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:59:38,081 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:59:38,081 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:59:38,083 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:59:38,086 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:59:38" (1/1) ... [2022-01-11 01:59:38,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:59:38 BasicIcfg [2022-01-11 01:59:38,180 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:59:38,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:59:38,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:59:38,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:59:38,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:59:37" (1/4) ... [2022-01-11 01:59:38,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104fb00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:59:38, skipping insertion in model container [2022-01-11 01:59:38,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:59:37" (2/4) ... [2022-01-11 01:59:38,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104fb00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:59:38, skipping insertion in model container [2022-01-11 01:59:38,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:59:38" (3/4) ... [2022-01-11 01:59:38,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104fb00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:59:38, skipping insertion in model container [2022-01-11 01:59:38,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:59:38" (4/4) ... [2022-01-11 01:59:38,204 INFO L111 eAbstractionObserver]: Analyzing ICFG array_1-2.cTransformedIcfg [2022-01-11 01:59:38,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:59:38,210 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 01:59:38,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:59:38,268 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 [2022-01-11 01:59:38,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 01:59:38,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) [2022-01-11 01:59:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 01:59:38,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:59:38,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 01:59:38,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:59:38,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:59:38,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1805578951, now seen corresponding path program 1 times [2022-01-11 01:59:38,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:59:38,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648690665] [2022-01-11 01:59:38,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:38,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:59:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:38,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:59:38,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648690665] [2022-01-11 01:59:38,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648690665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:59:38,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:59:38,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:59:38,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198873770] [2022-01-11 01:59:38,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:59:38,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 01:59:38,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:59:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 01:59:38,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 01:59:38,518 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) 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) [2022-01-11 01:59:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:59:38,530 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-01-11 01:59:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 01:59:38,532 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 [2022-01-11 01:59:38,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:59:38,539 INFO L225 Difference]: With dead ends: 20 [2022-01-11 01:59:38,539 INFO L226 Difference]: Without dead ends: 8 [2022-01-11 01:59:38,541 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 [2022-01-11 01:59:38,545 INFO L933 BasicCegarLoop]: 12 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, 12 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 [2022-01-11 01:59:38,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:59:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-01-11 01:59:38,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-01-11 01:59:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-01-11 01:59:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-01-11 01:59:38,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2022-01-11 01:59:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:59:38,579 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-01-11 01:59:38,579 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) [2022-01-11 01:59:38,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-01-11 01:59:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 01:59:38,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:59:38,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 01:59:38,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:59:38,582 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:59:38,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:59:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1805608742, now seen corresponding path program 1 times [2022-01-11 01:59:38,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:59:38,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120065109] [2022-01-11 01:59:38,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:38,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:59:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:38,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:59:38,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120065109] [2022-01-11 01:59:38,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120065109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:59:38,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:59:38,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:59:38,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087185880] [2022-01-11 01:59:38,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:59:38,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:59:38,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:59:38,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:59:38,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:59:38,722 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-01-11 01:59:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:59:38,751 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-01-11 01:59:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:59:38,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2022-01-11 01:59:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:59:38,753 INFO L225 Difference]: With dead ends: 14 [2022-01-11 01:59:38,753 INFO L226 Difference]: Without dead ends: 10 [2022-01-11 01:59:38,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:59:38,759 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:59:38,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:59:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-11 01:59:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-01-11 01:59:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-01-11 01:59:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-11 01:59:38,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-01-11 01:59:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:59:38,769 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-11 01:59:38,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-01-11 01:59:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-11 01:59:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-11 01:59:38,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:59:38,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:59:38,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:59:38,772 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:59:38,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:59:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash 52644360, now seen corresponding path program 1 times [2022-01-11 01:59:38,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:59:38,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365822437] [2022-01-11 01:59:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:38,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:59:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:38,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:59:38,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365822437] [2022-01-11 01:59:38,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365822437] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 01:59:38,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470633461] [2022-01-11 01:59:38,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:38,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 01:59:38,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:59:38,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 01:59:38,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 01:59:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:38,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 01:59:38,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 01:59:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:39,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 01:59:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:39,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470633461] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 01:59:39,257 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 01:59:39,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-11 01:59:39,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545905177] [2022-01-11 01:59:39,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 01:59:39,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 01:59:39,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:59:39,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 01:59:39,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:59:39,259 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2022-01-11 01:59:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:59:39,355 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-01-11 01:59:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:59:39,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Word has length 8 [2022-01-11 01:59:39,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:59:39,357 INFO L225 Difference]: With dead ends: 19 [2022-01-11 01:59:39,357 INFO L226 Difference]: Without dead ends: 15 [2022-01-11 01:59:39,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-11 01:59:39,358 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:59:39,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:59:39,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-01-11 01:59:39,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-01-11 01:59:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-01-11 01:59:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-01-11 01:59:39,363 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-01-11 01:59:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:59:39,363 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-01-11 01:59:39,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2022-01-11 01:59:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-01-11 01:59:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-11 01:59:39,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:59:39,364 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2022-01-11 01:59:39,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-11 01:59:39,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 01:59:39,570 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:59:39,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:59:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash 20991918, now seen corresponding path program 2 times [2022-01-11 01:59:39,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:59:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084238752] [2022-01-11 01:59:39,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:59:39,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:59:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:59:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:39,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:59:39,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084238752] [2022-01-11 01:59:39,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084238752] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 01:59:39,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399122167] [2022-01-11 01:59:39,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-11 01:59:39,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 01:59:39,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:59:39,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 01:59:39,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 01:59:39,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-11 01:59:39,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 01:59:39,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-11 01:59:39,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 01:59:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:50,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 01:59:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:59:52,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399122167] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 01:59:52,668 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 01:59:52,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 17 [2022-01-11 01:59:52,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465645165] [2022-01-11 01:59:52,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 01:59:52,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-11 01:59:52,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:59:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-11 01:59:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=181, Unknown=2, NotChecked=0, Total=272 [2022-01-11 01:59:52,670 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 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) [2022-01-11 02:00:00,376 WARN L228 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 39 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-11 02:00:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:00:10,344 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-01-11 02:00:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 02:00:10,344 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 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 14 [2022-01-11 02:00:10,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:00:10,345 INFO L225 Difference]: With dead ends: 29 [2022-01-11 02:00:10,345 INFO L226 Difference]: Without dead ends: 25 [2022-01-11 02:00:10,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=159, Invalid=300, Unknown=3, NotChecked=0, Total=462 [2022-01-11 02:00:10,347 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 02:00:10,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 52 Invalid, 0 Unknown, 15 Unchecked, 0.8s Time] [2022-01-11 02:00:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-11 02:00:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-11 02:00:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 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) [2022-01-11 02:00:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-01-11 02:00:10,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 14 [2022-01-11 02:00:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:00:10,354 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-01-11 02:00:10,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 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) [2022-01-11 02:00:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-01-11 02:00:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-11 02:00:10,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:00:10,355 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1] [2022-01-11 02:00:10,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 02:00:10,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-11 02:00:10,556 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:00:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:00:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash 491392792, now seen corresponding path program 3 times [2022-01-11 02:00:10,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:00:10,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087470632] [2022-01-11 02:00:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:00:10,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:00:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:00:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:00:10,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:00:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087470632] [2022-01-11 02:00:10,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087470632] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:00:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610696628] [2022-01-11 02:00:10,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-11 02:00:10,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:00:10,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:00:10,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:00:10,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 02:00:10,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-11 02:00:10,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 02:00:10,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-11 02:00:10,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:00:11,043 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-01-11 02:00:11,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 02:00:11,735 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-11 02:00:11,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 35 [2022-01-11 02:00:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-11 02:00:11,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:00:11,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610696628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:00:11,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-11 02:00:11,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-01-11 02:00:11,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815491248] [2022-01-11 02:00:11,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:00:11,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:00:11,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:00:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:00:11,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-01-11 02:00:11,873 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-01-11 02:00:11,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:00:11,891 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-01-11 02:00:11,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 02:00:11,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 24 [2022-01-11 02:00:11,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:00:11,892 INFO L225 Difference]: With dead ends: 25 [2022-01-11 02:00:11,893 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 02:00:11,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-01-11 02:00:11,894 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:00:11,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-01-11 02:00:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 02:00:11,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 02:00:11,895 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) [2022-01-11 02:00:11,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 02:00:11,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-01-11 02:00:11,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:00:11,895 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 02:00:11,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-01-11 02:00:11,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 02:00:11,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 02:00:11,898 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 02:00:11,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-11 02:00:12,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:00:12,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 02:00:16,830 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 02:00:16,831 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 02:00:16,831 INFO L854 garLoopResultBuilder]: At program point L16-3(lines 16 18) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ULTIMATE.start_main_~#A~0#1.offsetInt| 0))) (or (and .cse0 (<= |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 0) (not (<= (+ (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 1) 0))) (and .cse0 (< |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4294967296) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) (exists ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13_74| Int)) (let ((.cse2 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13_74| 4294967296))) (let ((.cse1 (+ .cse2 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|))) (and (< .cse1 4294967297) (< (* (mod (+ 2147483647 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 2147483648) 2) (+ 1023 .cse2 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|)) (= .cse1 (+ (select (select |#memory_intInt| |ULTIMATE.start_ULTIMATE.start_main_~#A~0#1.baseInt|) (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~#A~0#1.offsetInt| (mod (+ (* (mod (div (+ (- 1) .cse2 |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 2147483648) 2) 18446744056529682432) 18446744073709551612 (* 17179869184 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13_74|) (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4)) 18446744073709551616)) 18446744073709551616)) 1))))))))) [2022-01-11 02:00:16,831 INFO L858 garLoopResultBuilder]: For program point L16-4(lines 16 18) no Hoare annotation was computed. [2022-01-11 02:00:16,831 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 16 18) no Hoare annotation was computed. [2022-01-11 02:00:16,831 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-01-11 02:00:16,831 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-01-11 02:00:16,832 INFO L861 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2022-01-11 02:00:16,832 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2022-01-11 02:00:16,832 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 21) no Hoare annotation was computed. [2022-01-11 02:00:16,832 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 02:00:16,832 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 02:00:16,835 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-01-11 02:00:16,836 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 02:00:16,843 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13_74| at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation.IcfgTransformationObserver.lambda$0(IcfgTransformationObserver.java:355) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:113) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-11 02:00:16,846 INFO L158 Benchmark]: Toolchain (without parser) took 39283.57ms. Allocated memory was 180.4MB in the beginning and 263.2MB in the end (delta: 82.8MB). Free memory was 124.4MB in the beginning and 148.2MB in the end (delta: -23.8MB). Peak memory consumption was 60.0MB. Max. memory is 8.0GB. [2022-01-11 02:00:16,846 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:00:16,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.02ms. Allocated memory was 180.4MB in the beginning and 263.2MB in the end (delta: 82.8MB). Free memory was 124.2MB in the beginning and 238.7MB in the end (delta: -114.5MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2022-01-11 02:00:16,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.74ms. Allocated memory is still 263.2MB. Free memory was 238.7MB in the beginning and 237.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:00:16,846 INFO L158 Benchmark]: Boogie Preprocessor took 27.22ms. Allocated memory is still 263.2MB. Free memory was 237.1MB in the beginning and 236.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 02:00:16,847 INFO L158 Benchmark]: RCFGBuilder took 260.25ms. Allocated memory is still 263.2MB. Free memory was 235.5MB in the beginning and 224.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-11 02:00:16,847 INFO L158 Benchmark]: IcfgTransformer took 98.88ms. Allocated memory is still 263.2MB. Free memory was 224.5MB in the beginning and 221.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 02:00:16,847 INFO L158 Benchmark]: TraceAbstraction took 38663.58ms. Allocated memory is still 263.2MB. Free memory was 220.9MB in the beginning and 148.2MB in the end (delta: 72.6MB). Peak memory consumption was 73.2MB. Max. memory is 8.0GB. [2022-01-11 02:00:16,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 198.02ms. Allocated memory was 180.4MB in the beginning and 263.2MB in the end (delta: 82.8MB). Free memory was 124.2MB in the beginning and 238.7MB in the end (delta: -114.5MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.74ms. Allocated memory is still 263.2MB. Free memory was 238.7MB in the beginning and 237.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 27.22ms. Allocated memory is still 263.2MB. Free memory was 237.1MB in the beginning and 236.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 260.25ms. Allocated memory is still 263.2MB. Free memory was 235.5MB in the beginning and 224.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 98.88ms. Allocated memory is still 263.2MB. Free memory was 224.5MB in the beginning and 221.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 38663.58ms. Allocated memory is still 263.2MB. Free memory was 220.9MB in the beginning and 148.2MB in the end (delta: 72.6MB). Peak memory consumption was 73.2MB. 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 - PositiveResult [Line: 7]: 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 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.6s, OverallIterations: 5, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 28 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 32 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 24.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 12 NumberOfFragments, 88 HoareAnnotationTreeSize, 2 FomulaSimplifications, 143 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 957 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 104 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 116 ConstructedInterpolants, 5 QuantifiedInterpolants, 1507 SizeOfPredicates, 8 NumberOfNonLiveVariables, 380 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 81/213 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 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13_74| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_13_74|: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-11 02:00:16,863 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...