./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/standard_copy9_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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_copy9_ground-1.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 904ada5b631ac9ba69e93f7c5eb51a71b3a5f4ed245a1ea57aa3fec5e9b98c37 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 18:28:54,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 18:28:54,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 18:28:54,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 18:28:54,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 18:28:54,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 18:28:54,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 18:28:54,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 18:28:54,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 18:28:54,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 18:28:54,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 18:28:54,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 18:28:54,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 18:28:54,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 18:28:54,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 18:28:54,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 18:28:54,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 18:28:54,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 18:28:54,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 18:28:54,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 18:28:54,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 18:28:54,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 18:28:54,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 18:28:54,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 18:28:54,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 18:28:54,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 18:28:54,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 18:28:54,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 18:28:54,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 18:28:54,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 18:28:54,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 18:28:54,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 18:28:54,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 18:28:54,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 18:28:54,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 18:28:54,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 18:28:54,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 18:28:54,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 18:28:54,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 18:28:54,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 18:28:54,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 18:28:54,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 18:28:54,544 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 18:28:54,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 18:28:54,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 18:28:54,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 18:28:54,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 18:28:54,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 18:28:54,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 18:28:54,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 18:28:54,552 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 18:28:54,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 18:28:54,553 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 18:28:54,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 18:28:54,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 18:28:54,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 18:28:54,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 18:28:54,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 18:28:54,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 18:28:54,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 18:28:54,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 18:28:54,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 18:28:54,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 18:28:54,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 18:28:54,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 18:28:54,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 18:28:54,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 18:28:54,556 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 18:28:54,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 18:28:54,557 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 18:28:54,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 904ada5b631ac9ba69e93f7c5eb51a71b3a5f4ed245a1ea57aa3fec5e9b98c37 [2023-02-17 18:28:54,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 18:28:54,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 18:28:54,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 18:28:54,773 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 18:28:54,774 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 18:28:54,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy9_ground-1.i [2023-02-17 18:28:55,697 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 18:28:55,856 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 18:28:55,856 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy9_ground-1.i [2023-02-17 18:28:55,861 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eda5bc028/bfd3f1b35daf4d1984c01de2a8a8cd4d/FLAG548413805 [2023-02-17 18:28:55,873 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eda5bc028/bfd3f1b35daf4d1984c01de2a8a8cd4d [2023-02-17 18:28:55,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 18:28:55,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 18:28:55,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 18:28:55,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 18:28:55,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 18:28:55,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:28:55" (1/1) ... [2023-02-17 18:28:55,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e157621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:55, skipping insertion in model container [2023-02-17 18:28:55,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:28:55" (1/1) ... [2023-02-17 18:28:55,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 18:28:55,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 18:28:56,003 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_copy9_ground-1.i[816,829] [2023-02-17 18:28:56,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 18:28:56,020 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 18:28:56,027 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_copy9_ground-1.i[816,829] [2023-02-17 18:28:56,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 18:28:56,046 INFO L208 MainTranslator]: Completed translation [2023-02-17 18:28:56,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56 WrapperNode [2023-02-17 18:28:56,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 18:28:56,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 18:28:56,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 18:28:56,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 18:28:56,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,070 INFO L138 Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-02-17 18:28:56,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 18:28:56,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 18:28:56,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 18:28:56,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 18:28:56,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 18:28:56,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 18:28:56,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 18:28:56,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 18:28:56,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (1/1) ... [2023-02-17 18:28:56,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 18:28:56,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:28:56,113 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) [2023-02-17 18:28:56,120 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 [2023-02-17 18:28:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 18:28:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 18:28:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 18:28:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 18:28:56,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 18:28:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 18:28:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 18:28:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 18:28:56,224 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 18:28:56,226 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 18:28:56,491 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 18:28:56,496 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 18:28:56,496 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2023-02-17 18:28:56,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:28:56 BoogieIcfgContainer [2023-02-17 18:28:56,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 18:28:56,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 18:28:56,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 18:28:56,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 18:28:56,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 06:28:55" (1/3) ... [2023-02-17 18:28:56,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1456cefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:28:56, skipping insertion in model container [2023-02-17 18:28:56,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:28:56" (2/3) ... [2023-02-17 18:28:56,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1456cefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:28:56, skipping insertion in model container [2023-02-17 18:28:56,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:28:56" (3/3) ... [2023-02-17 18:28:56,504 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy9_ground-1.i [2023-02-17 18:28:56,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 18:28:56,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 18:28:56,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 18:28:56,558 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;@7c0b2855, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 18:28:56,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 18:28:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.6) internal successors, (64), 41 states have internal predecessors, (64), 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) [2023-02-17 18:28:56,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 18:28:56,567 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:28:56,568 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] [2023-02-17 18:28:56,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:28:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:28:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1887916137, now seen corresponding path program 1 times [2023-02-17 18:28:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:28:56,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406648547] [2023-02-17 18:28:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:56,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:28:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 18:28:56,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:28:56,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406648547] [2023-02-17 18:28:56,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406648547] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 18:28:56,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 18:28:56,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 18:28:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259684747] [2023-02-17 18:28:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 18:28:56,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 18:28:56,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 18:28:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 18:28:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 18:28:56,849 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.6) internal successors, (64), 41 states have internal predecessors, (64), 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 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 18:28:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 18:28:56,882 INFO L93 Difference]: Finished difference Result 82 states and 126 transitions. [2023-02-17 18:28:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 18:28:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-17 18:28:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 18:28:56,889 INFO L225 Difference]: With dead ends: 82 [2023-02-17 18:28:56,889 INFO L226 Difference]: Without dead ends: 40 [2023-02-17 18:28:56,891 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 [2023-02-17 18:28:56,893 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 98 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 [2023-02-17 18:28:56,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 98 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 18:28:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-17 18:28:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2023-02-17 18:28:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 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) [2023-02-17 18:28:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2023-02-17 18:28:56,926 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 25 [2023-02-17 18:28:56,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 18:28:56,927 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2023-02-17 18:28:56,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 18:28:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-02-17 18:28:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 18:28:56,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:28:56,929 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] [2023-02-17 18:28:56,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 18:28:56,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:28:56,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:28:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash -166940861, now seen corresponding path program 1 times [2023-02-17 18:28:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:28:56,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086179968] [2023-02-17 18:28:56,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:56,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:28:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 18:28:57,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:28:57,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086179968] [2023-02-17 18:28:57,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086179968] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 18:28:57,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989141437] [2023-02-17 18:28:57,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:57,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 18:28:57,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:28:57,132 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) [2023-02-17 18:28:57,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 18:28:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:57,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 18:28:57,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 18:28:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 18:28:57,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 18:28:57,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989141437] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 18:28:57,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 18:28:57,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-02-17 18:28:57,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424736335] [2023-02-17 18:28:57,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 18:28:57,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 18:28:57,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 18:28:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 18:28:57,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-17 18:28:57,286 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 18:28:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 18:28:57,358 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2023-02-17 18:28:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 18:28:57,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2023-02-17 18:28:57,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 18:28:57,363 INFO L225 Difference]: With dead ends: 88 [2023-02-17 18:28:57,363 INFO L226 Difference]: Without dead ends: 57 [2023-02-17 18:28:57,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-17 18:28:57,365 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 18:28:57,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 41 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 18:28:57,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-17 18:28:57,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2023-02-17 18:28:57,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 47 states have internal predecessors, (58), 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) [2023-02-17 18:28:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2023-02-17 18:28:57,373 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 27 [2023-02-17 18:28:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 18:28:57,374 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2023-02-17 18:28:57,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 18:28:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-02-17 18:28:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-17 18:28:57,375 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:28:57,375 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 18:28:57,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 18:28:57,581 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 [2023-02-17 18:28:57,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:28:57,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:28:57,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1109508687, now seen corresponding path program 1 times [2023-02-17 18:28:57,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:28:57,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13087110] [2023-02-17 18:28:57,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:57,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:28:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 18:28:57,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:28:57,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13087110] [2023-02-17 18:28:57,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13087110] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 18:28:57,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690290955] [2023-02-17 18:28:57,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:57,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 18:28:57,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:28:57,709 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) [2023-02-17 18:28:57,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 18:28:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:57,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 18:28:57,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 18:28:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 18:28:57,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 18:28:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 18:28:57,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690290955] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 18:28:57,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 18:28:57,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-17 18:28:57,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483322042] [2023-02-17 18:28:57,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 18:28:57,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 18:28:57,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 18:28:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 18:28:57,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-17 18:28:57,858 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2023-02-17 18:28:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 18:28:57,897 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2023-02-17 18:28:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 18:28:57,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 45 [2023-02-17 18:28:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 18:28:57,898 INFO L225 Difference]: With dead ends: 97 [2023-02-17 18:28:57,899 INFO L226 Difference]: Without dead ends: 54 [2023-02-17 18:28:57,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-17 18:28:57,900 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 18:28:57,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 134 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 18:28:57,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-17 18:28:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-02-17 18:28:57,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 53 states have internal predecessors, (64), 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) [2023-02-17 18:28:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2023-02-17 18:28:57,904 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 45 [2023-02-17 18:28:57,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 18:28:57,904 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2023-02-17 18:28:57,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2023-02-17 18:28:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2023-02-17 18:28:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-17 18:28:57,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:28:57,905 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 18:28:57,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 18:28:58,113 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 [2023-02-17 18:28:58,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:28:58,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:28:58,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1235875349, now seen corresponding path program 2 times [2023-02-17 18:28:58,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:28:58,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172467747] [2023-02-17 18:28:58,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:58,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:28:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-17 18:28:58,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:28:58,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172467747] [2023-02-17 18:28:58,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172467747] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 18:28:58,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224788151] [2023-02-17 18:28:58,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 18:28:58,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 18:28:58,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:28:58,225 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) [2023-02-17 18:28:58,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 18:28:58,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 18:28:58,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 18:28:58,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 18:28:58,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 18:28:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 18:28:58,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 18:28:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 18:28:58,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224788151] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 18:28:58,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 18:28:58,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2023-02-17 18:28:58,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140058596] [2023-02-17 18:28:58,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 18:28:58,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-17 18:28:58,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 18:28:58,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-17 18:28:58,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-02-17 18:28:58,418 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) [2023-02-17 18:28:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 18:28:58,527 INFO L93 Difference]: Finished difference Result 136 states and 170 transitions. [2023-02-17 18:28:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-17 18:28:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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 51 [2023-02-17 18:28:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 18:28:58,529 INFO L225 Difference]: With dead ends: 136 [2023-02-17 18:28:58,529 INFO L226 Difference]: Without dead ends: 93 [2023-02-17 18:28:58,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-02-17 18:28:58,530 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 18:28:58,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 89 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 18:28:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-17 18:28:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2023-02-17 18:28:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 83 states have internal predecessors, (94), 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) [2023-02-17 18:28:58,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2023-02-17 18:28:58,540 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 51 [2023-02-17 18:28:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 18:28:58,541 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2023-02-17 18:28:58,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) [2023-02-17 18:28:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2023-02-17 18:28:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-17 18:28:58,546 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:28:58,546 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-02-17 18:28:58,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-17 18:28:58,747 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 [2023-02-17 18:28:58,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:28:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:28:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2120427341, now seen corresponding path program 3 times [2023-02-17 18:28:58,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:28:58,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209679981] [2023-02-17 18:28:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:58,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:28:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:28:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-17 18:28:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:28:59,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209679981] [2023-02-17 18:28:59,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209679981] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 18:28:59,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561827977] [2023-02-17 18:28:59,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 18:28:59,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 18:28:59,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:28:59,049 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) [2023-02-17 18:28:59,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 18:28:59,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-17 18:28:59,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 18:28:59,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 18:28:59,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 18:28:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-02-17 18:28:59,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 18:28:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-02-17 18:28:59,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561827977] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 18:28:59,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 18:28:59,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2023-02-17 18:28:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350392272] [2023-02-17 18:28:59,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 18:28:59,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-17 18:28:59,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 18:28:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-17 18:28:59,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-02-17 18:28:59,288 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 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) [2023-02-17 18:28:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 18:28:59,535 INFO L93 Difference]: Finished difference Result 220 states and 276 transitions. [2023-02-17 18:28:59,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-17 18:28:59,535 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 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 81 [2023-02-17 18:28:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 18:28:59,536 INFO L225 Difference]: With dead ends: 220 [2023-02-17 18:28:59,536 INFO L226 Difference]: Without dead ends: 159 [2023-02-17 18:28:59,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-02-17 18:28:59,537 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 99 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 18:28:59,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 141 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 18:28:59,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-02-17 18:28:59,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2023-02-17 18:28:59,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.070063694267516) internal successors, (168), 157 states have internal predecessors, (168), 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) [2023-02-17 18:28:59,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2023-02-17 18:28:59,545 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 81 [2023-02-17 18:28:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 18:28:59,545 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2023-02-17 18:28:59,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 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) [2023-02-17 18:28:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2023-02-17 18:28:59,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-02-17 18:28:59,547 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:28:59,547 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-02-17 18:28:59,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 18:28:59,757 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 [2023-02-17 18:28:59,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:28:59,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:28:59,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1529021629, now seen corresponding path program 4 times [2023-02-17 18:28:59,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:28:59,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514453804] [2023-02-17 18:28:59,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:28:59,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:28:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:29:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-02-17 18:29:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:29:00,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514453804] [2023-02-17 18:29:00,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514453804] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 18:29:00,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727582484] [2023-02-17 18:29:00,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 18:29:00,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 18:29:00,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:29:00,109 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) [2023-02-17 18:29:00,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 18:29:00,316 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 18:29:00,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 18:29:00,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 18:29:00,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 18:29:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-17 18:29:00,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 18:29:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-17 18:29:00,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727582484] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 18:29:00,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 18:29:00,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2023-02-17 18:29:00,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679432703] [2023-02-17 18:29:00,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 18:29:00,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-17 18:29:00,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 18:29:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-17 18:29:00,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2023-02-17 18:29:00,500 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand has 28 states, 28 states have (on average 4.464285714285714) internal successors, (125), 28 states have internal predecessors, (125), 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) [2023-02-17 18:29:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 18:29:00,936 INFO L93 Difference]: Finished difference Result 438 states and 530 transitions. [2023-02-17 18:29:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-17 18:29:00,936 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.464285714285714) internal successors, (125), 28 states have internal predecessors, (125), 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 155 [2023-02-17 18:29:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 18:29:00,938 INFO L225 Difference]: With dead ends: 438 [2023-02-17 18:29:00,938 INFO L226 Difference]: Without dead ends: 305 [2023-02-17 18:29:00,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2023-02-17 18:29:00,939 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 251 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-17 18:29:00,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 142 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-17 18:29:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-02-17 18:29:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2023-02-17 18:29:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.0363036303630364) internal successors, (314), 303 states have internal predecessors, (314), 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) [2023-02-17 18:29:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 314 transitions. [2023-02-17 18:29:00,953 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 314 transitions. Word has length 155 [2023-02-17 18:29:00,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 18:29:00,955 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 314 transitions. [2023-02-17 18:29:00,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.464285714285714) internal successors, (125), 28 states have internal predecessors, (125), 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) [2023-02-17 18:29:00,955 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 314 transitions. [2023-02-17 18:29:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-02-17 18:29:00,957 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 18:29:00,958 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 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] [2023-02-17 18:29:00,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 18:29:01,168 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 [2023-02-17 18:29:01,168 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 18:29:01,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 18:29:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1642142321, now seen corresponding path program 5 times [2023-02-17 18:29:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 18:29:01,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213193667] [2023-02-17 18:29:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 18:29:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 18:29:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 18:29:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2023-02-17 18:29:01,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 18:29:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213193667] [2023-02-17 18:29:01,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213193667] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 18:29:01,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443719743] [2023-02-17 18:29:01,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 18:29:01,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 18:29:01,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 18:29:01,770 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) [2023-02-17 18:29:01,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process