/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_BITWISE.epf -i ../../../trunk/examples/svcomp/array-fpi/s22if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:58:13,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:58:13,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:58:13,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 09:58:13,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 09:58:13,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 09:58:13,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 09:58:13,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 09:58:13,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 09:58:13,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 09:58:13,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 09:58:13,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 09:58:13,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:58:13,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:58:13,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:58:13,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:58:13,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:58:13,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:58:13,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:58:13,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:58:13,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:58:13,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:58:13,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:58:13,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:58:13,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 09:58:13,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 09:58:13,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 09:58:13,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 09:58:13,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 09:58:13,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 09:58:13,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 09:58:13,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 09:58:13,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 09:58:13,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 09:58:13,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 09:58:13,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 09:58:13,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 09:58:13,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 09:58:13,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:58:13,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:58:13,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:58:13,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:58:13,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:58:13,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:58:13,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:58:13,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:58:13,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:58:13,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:58:13,103 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:58:13,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:58:13,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:58:13,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:58:13,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:58:13,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:58:13,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:58:13,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:58:13,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:58:13,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:58:13,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:58:13,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:58:13,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:58:13,106 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:58:13,107 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:58:13,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:58:13,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:58:13,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:58:13,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:58:13,367 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:58:13,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s22if.c [2022-01-10 09:58:13,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0022c73f/e7e3726f1fab4ef6afb844f486c0f176/FLAG8ce9af554 [2022-01-10 09:58:13,821 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:58:13,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s22if.c [2022-01-10 09:58:13,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0022c73f/e7e3726f1fab4ef6afb844f486c0f176/FLAG8ce9af554 [2022-01-10 09:58:14,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0022c73f/e7e3726f1fab4ef6afb844f486c0f176 [2022-01-10 09:58:14,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:58:14,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:58:14,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:58:14,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:58:14,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:58:14,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4290771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14, skipping insertion in model container [2022-01-10 09:58:14,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:58:14,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:58:14,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s22if.c[588,601] [2022-01-10 09:58:14,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:58:14,422 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:58:14,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s22if.c[588,601] [2022-01-10 09:58:14,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:58:14,448 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:58:14,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14 WrapperNode [2022-01-10 09:58:14,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:58:14,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:58:14,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:58:14,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:58:14,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,473 INFO L137 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-01-10 09:58:14,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:58:14,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:58:14,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:58:14,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:58:14,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:58:14,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:58:14,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:58:14,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:58:14,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:58:14,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:58:14,521 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 09:58:14,527 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 09:58:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:58:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 09:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 09:58:14,616 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:58:14,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:58:14,838 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:58:14,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:58:14,843 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 09:58:14,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:58:14 BoogieIcfgContainer [2022-01-10 09:58:14,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:58:14,845 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:58:14,845 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:58:14,847 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:58:14,849 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:58:14" (1/1) ... [2022-01-10 09:58:14,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:58:14 BasicIcfg [2022-01-10 09:58:14,974 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:58:14,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:58:14,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:58:14,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:58:14,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:58:14" (1/4) ... [2022-01-10 09:58:14,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e34ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:58:14, skipping insertion in model container [2022-01-10 09:58:14,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:58:14" (2/4) ... [2022-01-10 09:58:14,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e34ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:58:14, skipping insertion in model container [2022-01-10 09:58:14,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:58:14" (3/4) ... [2022-01-10 09:58:14,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e34ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:58:14, skipping insertion in model container [2022-01-10 09:58:14,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:58:14" (4/4) ... [2022-01-10 09:58:14,992 INFO L111 eAbstractionObserver]: Analyzing ICFG s22if.cTransformedIcfg [2022-01-10 09:58:14,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:58:14,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 09:58:15,044 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:58:15,051 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 09:58:15,051 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 09:58:15,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 09:58:15,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 09:58:15,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:58:15,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:58:15,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:58:15,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:58:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash -100191935, now seen corresponding path program 1 times [2022-01-10 09:58:15,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:58:15,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138073978] [2022-01-10 09:58:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:58:15,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:58:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:58:15,240 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 09:58:15,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:58:15,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138073978] [2022-01-10 09:58:15,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138073978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:58:15,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:58:15,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:58:15,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153245862] [2022-01-10 09:58:15,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:58:15,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:58:15,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:58:15,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:58:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:58:15,281 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 09:58:15,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:58:15,293 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2022-01-10 09:58:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:58:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-01-10 09:58:15,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:58:15,300 INFO L225 Difference]: With dead ends: 42 [2022-01-10 09:58:15,300 INFO L226 Difference]: Without dead ends: 19 [2022-01-10 09:58:15,302 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 09:58:15,307 INFO L933 BasicCegarLoop]: 28 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, 28 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 09:58:15,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:58:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-01-10 09:58:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-01-10 09:58:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 09:58:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-01-10 09:58:15,339 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2022-01-10 09:58:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:58:15,339 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-01-10 09:58:15,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 09:58:15,340 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-01-10 09:58:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 09:58:15,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:58:15,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:58:15,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 09:58:15,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:58:15,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:58:15,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1474763837, now seen corresponding path program 1 times [2022-01-10 09:58:15,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:58:15,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272332388] [2022-01-10 09:58:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:58:15,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:58:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:58:15,545 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 09:58:15,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:58:15,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272332388] [2022-01-10 09:58:15,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272332388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:58:15,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:58:15,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 09:58:15,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965286876] [2022-01-10 09:58:15,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:58:15,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 09:58:15,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:58:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 09:58:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 09:58:15,548 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 09:58:17,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 09:58:19,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 09:58:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:58:19,734 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-01-10 09:58:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 09:58:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-01-10 09:58:19,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:58:19,808 INFO L225 Difference]: With dead ends: 46 [2022-01-10 09:58:19,808 INFO L226 Difference]: Without dead ends: 34 [2022-01-10 09:58:19,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 09:58:19,809 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-10 09:58:19,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2022-01-10 09:58:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-01-10 09:58:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2022-01-10 09:58:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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 09:58:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-01-10 09:58:19,814 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2022-01-10 09:58:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:58:19,815 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-01-10 09:58:19,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 09:58:19,815 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-01-10 09:58:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 09:58:19,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:58:19,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:58:19,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 09:58:19,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:58:19,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:58:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2135952032, now seen corresponding path program 1 times [2022-01-10 09:58:19,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:58:19,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872676010] [2022-01-10 09:58:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:58:19,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:58:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:58:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:58:20,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:58:20,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872676010] [2022-01-10 09:58:20,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872676010] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 09:58:20,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552991848] [2022-01-10 09:58:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:58:20,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:58:20,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:58:20,768 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) [2022-01-10 09:58:20,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process