./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/standard_copy7_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3dbbec33 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-examples/standard_copy7_ground-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbf527dd3c93b1481b5a3e05c502e53db8f02c4e20ad58a12006bf35717e53d7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 09:34:41,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 09:34:41,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 09:34:41,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 09:34:41,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 09:34:41,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 09:34:41,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 09:34:41,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 09:34:41,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 09:34:41,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 09:34:41,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 09:34:41,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 09:34:41,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 09:34:41,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 09:34:41,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 09:34:41,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 09:34:41,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 09:34:41,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 09:34:41,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 09:34:41,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 09:34:41,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 09:34:41,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 09:34:41,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 09:34:41,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 09:34:41,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 09:34:41,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 09:34:41,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 09:34:41,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 09:34:41,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 09:34:41,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 09:34:41,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 09:34:41,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 09:34:41,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 09:34:41,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 09:34:41,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 09:34:41,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 09:34:41,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 09:34:41,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 09:34:41,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 09:34:41,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 09:34:41,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 09:34:41,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 09:34:41,243 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 09:34:41,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 09:34:41,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 09:34:41,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 09:34:41,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 09:34:41,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 09:34:41,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 09:34:41,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 09:34:41,247 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 09:34:41,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 09:34:41,248 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 09:34:41,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 09:34:41,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 09:34:41,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 09:34:41,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 09:34:41,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 09:34:41,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 09:34:41,249 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 09:34:41,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 09:34:41,249 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 09:34:41,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 09:34:41,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 09:34:41,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 09:34:41,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 09:34:41,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 09:34:41,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 09:34:41,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 09:34:41,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 09:34:41,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 09:34:41,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 09:34:41,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 09:34:41,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 09:34:41,252 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 09:34:41,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 09:34:41,252 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 09:34:41,252 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbf527dd3c93b1481b5a3e05c502e53db8f02c4e20ad58a12006bf35717e53d7 [2023-02-14 09:34:41,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 09:34:41,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 09:34:41,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 09:34:41,534 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 09:34:41,534 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 09:34:41,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy7_ground-2.i [2023-02-14 09:34:42,663 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 09:34:42,877 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 09:34:42,878 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy7_ground-2.i [2023-02-14 09:34:42,884 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd8335ea/f42f6dab95d64a638ea11fcbcd943b56/FLAG4c318e6a4 [2023-02-14 09:34:42,900 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd8335ea/f42f6dab95d64a638ea11fcbcd943b56 [2023-02-14 09:34:42,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 09:34:42,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 09:34:42,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 09:34:42,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 09:34:42,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 09:34:42,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:34:42" (1/1) ... [2023-02-14 09:34:42,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa9c3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:42, skipping insertion in model container [2023-02-14 09:34:42,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:34:42" (1/1) ... [2023-02-14 09:34:42,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 09:34:42,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 09:34:43,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy7_ground-2.i[816,829] [2023-02-14 09:34:43,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 09:34:43,114 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 09:34:43,126 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy7_ground-2.i[816,829] [2023-02-14 09:34:43,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 09:34:43,148 INFO L208 MainTranslator]: Completed translation [2023-02-14 09:34:43,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43 WrapperNode [2023-02-14 09:34:43,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 09:34:43,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 09:34:43,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 09:34:43,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 09:34:43,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,179 INFO L138 Inliner]: procedures = 16, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2023-02-14 09:34:43,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 09:34:43,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 09:34:43,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 09:34:43,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 09:34:43,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 09:34:43,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 09:34:43,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 09:34:43,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 09:34:43,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (1/1) ... [2023-02-14 09:34:43,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 09:34:43,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:43,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-14 09:34:43,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-14 09:34:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 09:34:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 09:34:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-14 09:34:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-14 09:34:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 09:34:43,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 09:34:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-14 09:34:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 09:34:43,356 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 09:34:43,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 09:34:43,611 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 09:34:43,616 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 09:34:43,616 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2023-02-14 09:34:43,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:34:43 BoogieIcfgContainer [2023-02-14 09:34:43,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 09:34:43,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 09:34:43,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 09:34:43,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 09:34:43,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 09:34:42" (1/3) ... [2023-02-14 09:34:43,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b6790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:34:43, skipping insertion in model container [2023-02-14 09:34:43,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:34:43" (2/3) ... [2023-02-14 09:34:43,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b6790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:34:43, skipping insertion in model container [2023-02-14 09:34:43,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:34:43" (3/3) ... [2023-02-14 09:34:43,625 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy7_ground-2.i [2023-02-14 09:34:43,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 09:34:43,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 09:34:43,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 09:34:43,691 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20d0f196, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 09:34:43,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 09:34:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 09:34:43,703 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:43,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:43,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:43,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1647230389, now seen corresponding path program 1 times [2023-02-14 09:34:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:43,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235086279] [2023-02-14 09:34:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:43,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 09:34:44,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:44,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235086279] [2023-02-14 09:34:44,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235086279] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 09:34:44,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 09:34:44,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 09:34:44,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834789092] [2023-02-14 09:34:44,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 09:34:44,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 09:34:44,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 09:34:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 09:34:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 09:34:44,151 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 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 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 09:34:44,190 INFO L93 Difference]: Finished difference Result 70 states and 106 transitions. [2023-02-14 09:34:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 09:34:44,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-14 09:34:44,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 09:34:44,198 INFO L225 Difference]: With dead ends: 70 [2023-02-14 09:34:44,198 INFO L226 Difference]: Without dead ends: 34 [2023-02-14 09:34:44,201 INFO L412 NwaCegarLoop]: 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 [2023-02-14 09:34:44,205 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 82 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 [2023-02-14 09:34:44,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 82 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 09:34:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-14 09:34:44,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-02-14 09:34:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2023-02-14 09:34:44,240 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 21 [2023-02-14 09:34:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 09:34:44,241 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2023-02-14 09:34:44,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-02-14 09:34:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-14 09:34:44,242 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:44,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:44,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 09:34:44,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:44,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:44,246 INFO L85 PathProgramCache]: Analyzing trace with hash -212862985, now seen corresponding path program 1 times [2023-02-14 09:34:44,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:44,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937424249] [2023-02-14 09:34:44,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:44,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:44,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 09:34:44,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:44,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937424249] [2023-02-14 09:34:44,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937424249] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 09:34:44,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629494916] [2023-02-14 09:34:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:44,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:44,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:44,419 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) [2023-02-14 09:34:44,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 09:34:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:44,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 09:34:44,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 09:34:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 09:34:44,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 09:34:44,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629494916] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 09:34:44,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-14 09:34:44,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-02-14 09:34:44,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235869888] [2023-02-14 09:34:44,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 09:34:44,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 09:34:44,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 09:34:44,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 09:34:44,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-14 09:34:44,593 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2023-02-14 09:34:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 09:34:44,659 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2023-02-14 09:34:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 09:34:44,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) Word has length 23 [2023-02-14 09:34:44,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 09:34:44,665 INFO L225 Difference]: With dead ends: 72 [2023-02-14 09:34:44,665 INFO L226 Difference]: Without dead ends: 47 [2023-02-14 09:34:44,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-14 09:34:44,669 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 7 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 09:34:44,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 37 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 09:34:44,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-14 09:34:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2023-02-14 09:34:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2023-02-14 09:34:44,687 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 23 [2023-02-14 09:34:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 09:34:44,687 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2023-02-14 09:34:44,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2023-02-14 09:34:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-02-14 09:34:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-14 09:34:44,689 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:44,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:44,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-14 09:34:44,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:44,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:44,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1047765161, now seen corresponding path program 1 times [2023-02-14 09:34:44,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:44,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677687189] [2023-02-14 09:34:44,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:44,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-14 09:34:45,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:45,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677687189] [2023-02-14 09:34:45,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677687189] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 09:34:45,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840895499] [2023-02-14 09:34:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:45,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:45,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:45,040 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) [2023-02-14 09:34:45,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 09:34:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:45,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 09:34:45,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 09:34:45,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-14 09:34:45,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 09:34:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-14 09:34:45,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840895499] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 09:34:45,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 09:34:45,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-14 09:34:45,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707727602] [2023-02-14 09:34:45,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 09:34:45,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-14 09:34:45,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 09:34:45,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-14 09:34:45,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-14 09:34:45,296 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 09:34:45,324 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2023-02-14 09:34:45,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 09:34:45,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 37 [2023-02-14 09:34:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 09:34:45,325 INFO L225 Difference]: With dead ends: 81 [2023-02-14 09:34:45,325 INFO L226 Difference]: Without dead ends: 46 [2023-02-14 09:34:45,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-14 09:34:45,327 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 09:34:45,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 74 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 09:34:45,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-14 09:34:45,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-02-14 09:34:45,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2023-02-14 09:34:45,336 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 37 [2023-02-14 09:34:45,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 09:34:45,336 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2023-02-14 09:34:45,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:45,337 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2023-02-14 09:34:45,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-02-14 09:34:45,340 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:45,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:45,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 09:34:45,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-14 09:34:45,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:45,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:45,548 INFO L85 PathProgramCache]: Analyzing trace with hash -76527901, now seen corresponding path program 2 times [2023-02-14 09:34:45,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:45,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939264109] [2023-02-14 09:34:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 09:34:45,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:45,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939264109] [2023-02-14 09:34:45,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939264109] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 09:34:45,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228497368] [2023-02-14 09:34:45,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 09:34:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:45,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:45,653 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) [2023-02-14 09:34:45,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 09:34:45,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 09:34:45,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 09:34:45,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 09:34:45,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 09:34:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 09:34:45,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 09:34:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 09:34:45,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228497368] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 09:34:45,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 09:34:45,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-14 09:34:45,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849618440] [2023-02-14 09:34:45,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 09:34:45,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-14 09:34:45,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 09:34:45,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-14 09:34:45,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-14 09:34:45,843 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:46,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 09:34:46,032 INFO L93 Difference]: Finished difference Result 119 states and 154 transitions. [2023-02-14 09:34:46,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 09:34:46,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 43 [2023-02-14 09:34:46,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 09:34:46,034 INFO L225 Difference]: With dead ends: 119 [2023-02-14 09:34:46,034 INFO L226 Difference]: Without dead ends: 88 [2023-02-14 09:34:46,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-14 09:34:46,035 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 36 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 09:34:46,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 59 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 09:34:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-02-14 09:34:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-02-14 09:34:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.103448275862069) internal successors, (96), 87 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-02-14 09:34:46,042 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 43 [2023-02-14 09:34:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 09:34:46,043 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-02-14 09:34:46,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-02-14 09:34:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-02-14 09:34:46,044 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:46,045 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:46,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 09:34:46,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:46,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:46,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash 932289401, now seen corresponding path program 3 times [2023-02-14 09:34:46,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:46,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61852033] [2023-02-14 09:34:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:46,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-02-14 09:34:46,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:46,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61852033] [2023-02-14 09:34:46,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61852033] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 09:34:46,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86857825] [2023-02-14 09:34:46,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 09:34:46,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:46,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:46,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 09:34:46,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 09:34:47,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-14 09:34:47,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 09:34:47,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 09:34:47,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 09:34:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-02-14 09:34:47,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 09:34:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-02-14 09:34:47,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86857825] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 09:34:47,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 09:34:47,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-02-14 09:34:47,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108258152] [2023-02-14 09:34:47,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 09:34:47,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-14 09:34:47,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 09:34:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-14 09:34:47,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-02-14 09:34:47,262 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 09:34:47,602 INFO L93 Difference]: Finished difference Result 252 states and 310 transitions. [2023-02-14 09:34:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-14 09:34:47,604 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 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 85 [2023-02-14 09:34:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 09:34:47,605 INFO L225 Difference]: With dead ends: 252 [2023-02-14 09:34:47,605 INFO L226 Difference]: Without dead ends: 175 [2023-02-14 09:34:47,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-02-14 09:34:47,607 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 135 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 09:34:47,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 170 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 09:34:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-02-14 09:34:47,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2023-02-14 09:34:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.0520231213872833) internal successors, (182), 173 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:47,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 182 transitions. [2023-02-14 09:34:47,621 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 182 transitions. Word has length 85 [2023-02-14 09:34:47,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 09:34:47,621 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 182 transitions. [2023-02-14 09:34:47,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:47,621 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 182 transitions. [2023-02-14 09:34:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-02-14 09:34:47,624 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:47,624 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:47,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-14 09:34:47,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:47,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:47,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1857988451, now seen corresponding path program 4 times [2023-02-14 09:34:47,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:47,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690263479] [2023-02-14 09:34:47,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:47,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2023-02-14 09:34:48,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:48,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690263479] [2023-02-14 09:34:48,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690263479] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 09:34:48,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753583397] [2023-02-14 09:34:48,159 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 09:34:48,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:48,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 09:34:48,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 09:34:48,396 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 09:34:48,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 09:34:48,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 09:34:48,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 09:34:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2023-02-14 09:34:48,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 09:34:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2023-02-14 09:34:48,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753583397] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 09:34:48,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 09:34:48,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-14 09:34:48,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549295456] [2023-02-14 09:34:48,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 09:34:48,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-14 09:34:48,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 09:34:48,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-14 09:34:48,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-02-14 09:34:48,510 INFO L87 Difference]: Start difference. First operand 174 states and 182 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 09:34:48,540 INFO L93 Difference]: Finished difference Result 349 states and 371 transitions. [2023-02-14 09:34:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-14 09:34:48,541 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 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 171 [2023-02-14 09:34:48,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 09:34:48,545 INFO L225 Difference]: With dead ends: 349 [2023-02-14 09:34:48,545 INFO L226 Difference]: Without dead ends: 188 [2023-02-14 09:34:48,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-02-14 09:34:48,547 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 09:34:48,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 74 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 09:34:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-02-14 09:34:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-02-14 09:34:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.0481283422459893) internal successors, (196), 187 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 196 transitions. [2023-02-14 09:34:48,569 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 196 transitions. Word has length 171 [2023-02-14 09:34:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 09:34:48,569 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 196 transitions. [2023-02-14 09:34:48,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 09:34:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 196 transitions. [2023-02-14 09:34:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-02-14 09:34:48,577 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 09:34:48,578 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 09:34:48,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-14 09:34:48,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:48,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 09:34:48,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 09:34:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash 727181845, now seen corresponding path program 5 times [2023-02-14 09:34:48,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 09:34:48,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791694919] [2023-02-14 09:34:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 09:34:48,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 09:34:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 09:34:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2023-02-14 09:34:49,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 09:34:49,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791694919] [2023-02-14 09:34:49,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791694919] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 09:34:49,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668691399] [2023-02-14 09:34:49,316 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 09:34:49,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 09:34:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 09:34:49,317 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 09:34:49,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process