./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loop-acceleration/array3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a31fd051 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/loop-acceleration/array3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9dfb76d38495bc50f893b9a1fbc1c4079ae42ab458f1c235795d8ebc0da579ea --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:31:58,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:31:58,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:31:58,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:31:58,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:31:58,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:31:58,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:31:58,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:31:58,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:31:58,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:31:58,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:31:58,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:31:58,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:31:58,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:31:58,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:31:58,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:31:58,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:31:58,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:31:58,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:31:58,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:31:58,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:31:58,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:31:58,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:31:58,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:31:58,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:31:58,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:31:58,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:31:58,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:31:58,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:31:58,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:31:58,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:31:58,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:31:58,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:31:58,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:31:58,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:31:58,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:31:58,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:31:58,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:31:58,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:31:58,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:31:58,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:31:58,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-15 13:31:58,781 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:31:58,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:31:58,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:31:58,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:31:58,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:31:58,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:31:58,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:31:58,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:31:58,783 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:31:58,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:31:58,784 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:31:58,784 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 13:31:58,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:31:58,786 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 13:31:58,786 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:31:58,786 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:31:58,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:31:58,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:31:58,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:31:58,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:31:58,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:31:58,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:31:58,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:31:58,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:31:58,787 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:31:58,787 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:31:58,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:31:58,788 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:31:58,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dfb76d38495bc50f893b9a1fbc1c4079ae42ab458f1c235795d8ebc0da579ea [2023-02-15 13:31:58,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:31:58,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:31:58,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:31:58,961 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:31:58,961 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:31:58,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array3.i [2023-02-15 13:31:59,904 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:32:00,040 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:32:00,041 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array3.i [2023-02-15 13:32:00,045 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9050ea6/705891241d5743978c196fac3fc804f0/FLAG34891eb36 [2023-02-15 13:32:00,058 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9050ea6/705891241d5743978c196fac3fc804f0 [2023-02-15 13:32:00,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:32:00,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:32:00,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:32:00,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:32:00,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:32:00,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e926d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00, skipping insertion in model container [2023-02-15 13:32:00,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:32:00,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:32:00,181 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/loop-acceleration/array3.i[846,859] [2023-02-15 13:32:00,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:32:00,202 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:32:00,210 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/loop-acceleration/array3.i[846,859] [2023-02-15 13:32:00,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:32:00,226 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:32:00,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00 WrapperNode [2023-02-15 13:32:00,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:32:00,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:32:00,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:32:00,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:32:00,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,247 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2023-02-15 13:32:00,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:32:00,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:32:00,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:32:00,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:32:00,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:32:00,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:32:00,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:32:00,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:32:00,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (1/1) ... [2023-02-15 13:32:00,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:32:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:00,296 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) [2023-02-15 13:32:00,316 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 [2023-02-15 13:32:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:32:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 13:32:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 13:32:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 13:32:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:32:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:32:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 13:32:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 13:32:00,371 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:32:00,373 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:32:00,473 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:32:00,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:32:00,477 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 13:32:00,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:32:00 BoogieIcfgContainer [2023-02-15 13:32:00,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:32:00,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:32:00,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:32:00,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:32:00,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:32:00" (1/3) ... [2023-02-15 13:32:00,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8e068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:32:00, skipping insertion in model container [2023-02-15 13:32:00,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:32:00" (2/3) ... [2023-02-15 13:32:00,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8e068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:32:00, skipping insertion in model container [2023-02-15 13:32:00,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:32:00" (3/3) ... [2023-02-15 13:32:00,505 INFO L112 eAbstractionObserver]: Analyzing ICFG array3.i [2023-02-15 13:32:00,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:32:00,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 13:32:00,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:32:00,572 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@5da5c897, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:32:00,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 13:32:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 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) [2023-02-15 13:32:00,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 13:32:00,581 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:00,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 13:32:00,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:00,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:00,590 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-02-15 13:32:00,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:00,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227969850] [2023-02-15 13:32:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:00,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:00,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:00,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227969850] [2023-02-15 13:32:00,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227969850] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:32:00,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:32:00,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:32:00,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978940113] [2023-02-15 13:32:00,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:32:00,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:32:00,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:00,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:32:00,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:32:00,825 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 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, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-15 13:32:00,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:00,878 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-02-15 13:32:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:32:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-02-15 13:32:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:00,884 INFO L225 Difference]: With dead ends: 22 [2023-02-15 13:32:00,885 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 13:32:00,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:32:00,889 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:00,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 20 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:32:00,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 13:32:00,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-15 13:32:00,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-02-15 13:32:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-02-15 13:32:00,907 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2023-02-15 13:32:00,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:00,908 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-02-15 13:32:00,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-15 13:32:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-02-15 13:32:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 13:32:00,908 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:00,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 13:32:00,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:32:00,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:00,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:00,909 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2023-02-15 13:32:00,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:00,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899001229] [2023-02-15 13:32:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:00,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:01,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899001229] [2023-02-15 13:32:01,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899001229] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:32:01,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:32:01,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:32:01,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467047798] [2023-02-15 13:32:01,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:32:01,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:32:01,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:01,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:32:01,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:32:01,027 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-15 13:32:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:01,061 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2023-02-15 13:32:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:32:01,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-02-15 13:32:01,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:01,062 INFO L225 Difference]: With dead ends: 24 [2023-02-15 13:32:01,062 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 13:32:01,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:32:01,067 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:01,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:32:01,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 13:32:01,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2023-02-15 13:32:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-02-15 13:32:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-02-15 13:32:01,076 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 4 [2023-02-15 13:32:01,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:01,077 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-02-15 13:32:01,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-15 13:32:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-02-15 13:32:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 13:32:01,080 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:01,080 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-15 13:32:01,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:32:01,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:01,082 INFO L85 PathProgramCache]: Analyzing trace with hash 264435913, now seen corresponding path program 1 times [2023-02-15 13:32:01,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:01,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629921954] [2023-02-15 13:32:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:01,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:01,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:01,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629921954] [2023-02-15 13:32:01,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629921954] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:01,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587706620] [2023-02-15 13:32:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:01,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:01,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:01,250 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) [2023-02-15 13:32:01,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 13:32:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:01,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 13:32:01,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:01,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-15 13:32:01,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:01,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:32:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:01,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587706620] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:32:01,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:32:01,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-02-15 13:32:01,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52782487] [2023-02-15 13:32:01,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:32:01,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 13:32:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:01,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 13:32:01,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-15 13:32:01,479 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 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) [2023-02-15 13:32:01,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:01,611 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2023-02-15 13:32:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 13:32:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 13:32:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:01,613 INFO L225 Difference]: With dead ends: 60 [2023-02-15 13:32:01,613 INFO L226 Difference]: Without dead ends: 60 [2023-02-15 13:32:01,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-02-15 13:32:01,616 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 117 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:01,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 51 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:32:01,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-15 13:32:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 45. [2023-02-15 13:32:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 44 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) [2023-02-15 13:32:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2023-02-15 13:32:01,627 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2023-02-15 13:32:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:01,627 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2023-02-15 13:32:01,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 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) [2023-02-15 13:32:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2023-02-15 13:32:01,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 13:32:01,628 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:01,628 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:32:01,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 13:32:01,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:01,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:01,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1096013292, now seen corresponding path program 1 times [2023-02-15 13:32:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:01,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574080154] [2023-02-15 13:32:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:01,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:01,942 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:01,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:01,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574080154] [2023-02-15 13:32:01,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574080154] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:32:01,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:32:01,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:32:01,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839243532] [2023-02-15 13:32:01,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:32:01,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:32:01,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:01,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:32:01,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:32:01,945 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:32:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:01,969 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2023-02-15 13:32:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 13:32:01,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-15 13:32:01,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:01,970 INFO L225 Difference]: With dead ends: 50 [2023-02-15 13:32:01,970 INFO L226 Difference]: Without dead ends: 50 [2023-02-15 13:32:01,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:32:01,971 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:01,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:32:01,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-15 13:32:01,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2023-02-15 13:32:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 46 states have internal predecessors, (51), 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) [2023-02-15 13:32:01,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2023-02-15 13:32:01,976 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 25 [2023-02-15 13:32:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:01,976 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2023-02-15 13:32:01,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:32:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2023-02-15 13:32:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 13:32:01,977 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:01,977 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:32:01,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:32:01,978 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:01,978 INFO L85 PathProgramCache]: Analyzing trace with hash -383321270, now seen corresponding path program 1 times [2023-02-15 13:32:01,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:01,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61508648] [2023-02-15 13:32:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:01,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:02,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:02,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61508648] [2023-02-15 13:32:02,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61508648] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:02,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123553116] [2023-02-15 13:32:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:02,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:02,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:02,058 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) [2023-02-15 13:32:02,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 13:32:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:02,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 13:32:02,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:02,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:32:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:02,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123553116] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:32:02,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:32:02,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-15 13:32:02,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105746227] [2023-02-15 13:32:02,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:32:02,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 13:32:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:02,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 13:32:02,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-15 13:32:02,191 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 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) [2023-02-15 13:32:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:02,292 INFO L93 Difference]: Finished difference Result 169 states and 170 transitions. [2023-02-15 13:32:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 13:32:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 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) Word has length 26 [2023-02-15 13:32:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:02,294 INFO L225 Difference]: With dead ends: 169 [2023-02-15 13:32:02,294 INFO L226 Difference]: Without dead ends: 169 [2023-02-15 13:32:02,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-15 13:32:02,294 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 231 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:02,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 95 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:32:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-15 13:32:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 71. [2023-02-15 13:32:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 68 states have (on average 1.1029411764705883) internal successors, (75), 70 states have internal predecessors, (75), 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) [2023-02-15 13:32:02,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2023-02-15 13:32:02,310 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 26 [2023-02-15 13:32:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:02,310 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2023-02-15 13:32:02,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 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) [2023-02-15 13:32:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2023-02-15 13:32:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-15 13:32:02,312 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:02,312 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:32:02,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 13:32:02,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:02,518 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:02,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:02,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2088511908, now seen corresponding path program 2 times [2023-02-15 13:32:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:02,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064825453] [2023-02-15 13:32:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:32:02,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:02,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064825453] [2023-02-15 13:32:02,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064825453] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:02,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693257404] [2023-02-15 13:32:02,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:32:02,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:02,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:02,697 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) [2023-02-15 13:32:02,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 13:32:02,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 13:32:02,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:32:02,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 13:32:02,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:02,955 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#A~0#1.base_13| Int)) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#A~0#1.base_13|) 0) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#A~0#1.base_13| 0)))) is different from true [2023-02-15 13:32:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-15 13:32:02,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:32:02,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693257404] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:32:02,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 13:32:02,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2023-02-15 13:32:02,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701278753] [2023-02-15 13:32:02,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:32:02,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:32:02,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:02,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:32:02,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=103, Unknown=1, NotChecked=24, Total=210 [2023-02-15 13:32:02,958 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:32:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:02,966 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2023-02-15 13:32:02,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:32:02,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-02-15 13:32:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:02,967 INFO L225 Difference]: With dead ends: 70 [2023-02-15 13:32:02,967 INFO L226 Difference]: Without dead ends: 66 [2023-02-15 13:32:02,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=103, Unknown=1, NotChecked=24, Total=210 [2023-02-15 13:32:02,968 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:02,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2023-02-15 13:32:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-15 13:32:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-02-15 13:32:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 64 states have (on average 1.078125) internal successors, (69), 65 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) [2023-02-15 13:32:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2023-02-15 13:32:02,983 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 50 [2023-02-15 13:32:02,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:02,983 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2023-02-15 13:32:02,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:32:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2023-02-15 13:32:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-02-15 13:32:02,984 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:02,984 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:32:02,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 13:32:03,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:03,189 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:03,189 INFO L85 PathProgramCache]: Analyzing trace with hash 122499825, now seen corresponding path program 1 times [2023-02-15 13:32:03,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:03,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897004560] [2023-02-15 13:32:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:03,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-15 13:32:03,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:03,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897004560] [2023-02-15 13:32:03,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897004560] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:03,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728090364] [2023-02-15 13:32:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:03,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:03,329 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) [2023-02-15 13:32:03,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 13:32:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:03,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 13:32:03,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 13:32:03,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:32:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 13:32:03,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728090364] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:32:03,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:32:03,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 26 [2023-02-15 13:32:03,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578492151] [2023-02-15 13:32:03,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:32:03,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 13:32:03,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:03,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 13:32:03,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2023-02-15 13:32:03,727 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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) [2023-02-15 13:32:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:04,162 INFO L93 Difference]: Finished difference Result 248 states and 249 transitions. [2023-02-15 13:32:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-02-15 13:32:04,162 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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 53 [2023-02-15 13:32:04,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:04,163 INFO L225 Difference]: With dead ends: 248 [2023-02-15 13:32:04,163 INFO L226 Difference]: Without dead ends: 206 [2023-02-15 13:32:04,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=806, Invalid=1356, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 13:32:04,165 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 348 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:04,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 97 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:32:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-02-15 13:32:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 187. [2023-02-15 13:32:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.1135135135135135) internal successors, (206), 186 states have internal predecessors, (206), 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) [2023-02-15 13:32:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 206 transitions. [2023-02-15 13:32:04,169 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 206 transitions. Word has length 53 [2023-02-15 13:32:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:04,169 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 206 transitions. [2023-02-15 13:32:04,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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) [2023-02-15 13:32:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 206 transitions. [2023-02-15 13:32:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-02-15 13:32:04,171 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:04,171 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-15 13:32:04,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 13:32:04,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:04,377 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:04,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:04,377 INFO L85 PathProgramCache]: Analyzing trace with hash -967423035, now seen corresponding path program 1 times [2023-02-15 13:32:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:04,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225249479] [2023-02-15 13:32:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:04,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225249479] [2023-02-15 13:32:04,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225249479] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836322486] [2023-02-15 13:32:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:04,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:04,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:04,891 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) [2023-02-15 13:32:04,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 13:32:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:04,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 13:32:04,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:05,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:32:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:05,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836322486] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:32:05,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:32:05,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-02-15 13:32:05,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931963522] [2023-02-15 13:32:05,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:32:05,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-02-15 13:32:05,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:05,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-02-15 13:32:05,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-02-15 13:32:05,689 INFO L87 Difference]: Start difference. First operand 187 states and 206 transitions. Second operand has 49 states, 49 states have (on average 3.9183673469387754) internal successors, (192), 49 states have internal predecessors, (192), 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) [2023-02-15 13:32:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:06,108 INFO L93 Difference]: Finished difference Result 518 states and 519 transitions. [2023-02-15 13:32:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 13:32:06,109 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.9183673469387754) internal successors, (192), 49 states have internal predecessors, (192), 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 109 [2023-02-15 13:32:06,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:06,110 INFO L225 Difference]: With dead ends: 518 [2023-02-15 13:32:06,110 INFO L226 Difference]: Without dead ends: 518 [2023-02-15 13:32:06,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-02-15 13:32:06,111 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 833 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:06,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 192 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 13:32:06,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-02-15 13:32:06,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 283. [2023-02-15 13:32:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 281 states have (on average 1.0747330960854093) internal successors, (302), 282 states have internal predecessors, (302), 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) [2023-02-15 13:32:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 302 transitions. [2023-02-15 13:32:06,125 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 302 transitions. Word has length 109 [2023-02-15 13:32:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:06,125 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 302 transitions. [2023-02-15 13:32:06,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.9183673469387754) internal successors, (192), 49 states have internal predecessors, (192), 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) [2023-02-15 13:32:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 302 transitions. [2023-02-15 13:32:06,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-02-15 13:32:06,130 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:06,131 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-15 13:32:06,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 13:32:06,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:06,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:06,336 INFO L85 PathProgramCache]: Analyzing trace with hash 922349181, now seen corresponding path program 2 times [2023-02-15 13:32:06,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:06,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220238968] [2023-02-15 13:32:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:07,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:07,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220238968] [2023-02-15 13:32:07,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220238968] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:07,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743655401] [2023-02-15 13:32:07,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:32:07,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:07,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:07,881 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) [2023-02-15 13:32:07,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 13:32:08,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:32:08,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:32:08,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 13:32:08,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:08,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:32:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:10,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743655401] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:32:10,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:32:10,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2023-02-15 13:32:10,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918011458] [2023-02-15 13:32:10,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:32:10,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-02-15 13:32:10,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-02-15 13:32:10,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-15 13:32:10,407 INFO L87 Difference]: Start difference. First operand 283 states and 302 transitions. Second operand has 97 states, 97 states have (on average 3.9587628865979383) internal successors, (384), 97 states have internal predecessors, (384), 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) [2023-02-15 13:32:12,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:12,250 INFO L93 Difference]: Finished difference Result 1142 states and 1143 transitions. [2023-02-15 13:32:12,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 13:32:12,250 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.9587628865979383) internal successors, (384), 97 states have internal predecessors, (384), 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 205 [2023-02-15 13:32:12,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:12,258 INFO L225 Difference]: With dead ends: 1142 [2023-02-15 13:32:12,258 INFO L226 Difference]: Without dead ends: 1142 [2023-02-15 13:32:12,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-15 13:32:12,263 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2551 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:12,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 419 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-15 13:32:12,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2023-02-15 13:32:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 475. [2023-02-15 13:32:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 473 states have (on average 1.0443974630021142) internal successors, (494), 474 states have internal predecessors, (494), 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) [2023-02-15 13:32:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 494 transitions. [2023-02-15 13:32:12,271 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 494 transitions. Word has length 205 [2023-02-15 13:32:12,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:12,272 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 494 transitions. [2023-02-15 13:32:12,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.9587628865979383) internal successors, (384), 97 states have internal predecessors, (384), 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) [2023-02-15 13:32:12,272 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 494 transitions. [2023-02-15 13:32:12,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-02-15 13:32:12,276 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:12,276 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-15 13:32:12,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 13:32:12,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:12,481 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:12,482 INFO L85 PathProgramCache]: Analyzing trace with hash 327242733, now seen corresponding path program 3 times [2023-02-15 13:32:12,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:12,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960309059] [2023-02-15 13:32:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 17606 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 13:32:17,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:17,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960309059] [2023-02-15 13:32:17,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960309059] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:17,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510270125] [2023-02-15 13:32:17,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:32:17,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:17,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:17,583 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:32:17,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 13:32:17,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 13:32:17,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:32:17,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 13:32:17,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:32:17,913 INFO L134 CoverageAnalysis]: Checked inductivity of 17606 backedges. 280 proven. 28 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2023-02-15 13:32:17,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:32:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 17606 backedges. 280 proven. 28 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2023-02-15 13:32:18,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510270125] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:32:18,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:32:18,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 10, 10] total 115 [2023-02-15 13:32:18,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810328557] [2023-02-15 13:32:18,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:32:18,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2023-02-15 13:32:18,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:18,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2023-02-15 13:32:18,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5543, Invalid=7567, Unknown=0, NotChecked=0, Total=13110 [2023-02-15 13:32:18,514 INFO L87 Difference]: Start difference. First operand 475 states and 494 transitions. Second operand has 115 states, 115 states have (on average 3.773913043478261) internal successors, (434), 115 states have internal predecessors, (434), 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) [2023-02-15 13:32:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:26,845 INFO L93 Difference]: Finished difference Result 1124 states and 1130 transitions. [2023-02-15 13:32:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-02-15 13:32:26,845 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 3.773913043478261) internal successors, (434), 115 states have internal predecessors, (434), 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 397 [2023-02-15 13:32:26,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:26,848 INFO L225 Difference]: With dead ends: 1124 [2023-02-15 13:32:26,848 INFO L226 Difference]: Without dead ends: 1124 [2023-02-15 13:32:26,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 876 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8630 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=16782, Invalid=30090, Unknown=0, NotChecked=0, Total=46872 [2023-02-15 13:32:26,853 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7127 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7127 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:26,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7127 Valid, 462 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [957 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 13:32:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2023-02-15 13:32:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 790. [2023-02-15 13:32:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 788 states have (on average 1.101522842639594) internal successors, (868), 789 states have internal predecessors, (868), 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) [2023-02-15 13:32:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 868 transitions. [2023-02-15 13:32:26,861 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 868 transitions. Word has length 397 [2023-02-15 13:32:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:26,862 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 868 transitions. [2023-02-15 13:32:26,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 3.773913043478261) internal successors, (434), 115 states have internal predecessors, (434), 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) [2023-02-15 13:32:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 868 transitions. [2023-02-15 13:32:26,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-02-15 13:32:26,866 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:26,866 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:32:26,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 13:32:27,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:27,071 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:27,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:27,071 INFO L85 PathProgramCache]: Analyzing trace with hash 771095157, now seen corresponding path program 2 times [2023-02-15 13:32:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:27,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657856036] [2023-02-15 13:32:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18923 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 18858 trivial. 0 not checked. [2023-02-15 13:32:27,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:27,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657856036] [2023-02-15 13:32:27,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657856036] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:32:27,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:32:27,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 13:32:27,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315615726] [2023-02-15 13:32:27,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:32:27,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 13:32:27,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:32:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 13:32:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:32:27,444 INFO L87 Difference]: Start difference. First operand 790 states and 868 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-02-15 13:32:27,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:32:27,461 INFO L93 Difference]: Finished difference Result 788 states and 866 transitions. [2023-02-15 13:32:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 13:32:27,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 477 [2023-02-15 13:32:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:32:27,464 INFO L225 Difference]: With dead ends: 788 [2023-02-15 13:32:27,464 INFO L226 Difference]: Without dead ends: 786 [2023-02-15 13:32:27,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:32:27,465 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:32:27,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:32:27,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-02-15 13:32:27,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2023-02-15 13:32:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.002547770700637) internal successors, (787), 785 states have internal predecessors, (787), 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) [2023-02-15 13:32:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 787 transitions. [2023-02-15 13:32:27,473 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 787 transitions. Word has length 477 [2023-02-15 13:32:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:32:27,474 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 787 transitions. [2023-02-15 13:32:27,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-02-15 13:32:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 787 transitions. [2023-02-15 13:32:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2023-02-15 13:32:27,487 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:32:27,487 INFO L195 NwaCegarLoop]: trace histogram [100, 100, 100, 100, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2023-02-15 13:32:27,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-15 13:32:27,487 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-02-15 13:32:27,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:32:27,488 INFO L85 PathProgramCache]: Analyzing trace with hash 808802154, now seen corresponding path program 4 times [2023-02-15 13:32:27,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:32:27,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267036859] [2023-02-15 13:32:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:32:27,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:32:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:32:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 37855 backedges. 0 proven. 17955 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2023-02-15 13:32:34,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:32:34,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267036859] [2023-02-15 13:32:34,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267036859] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:32:34,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811358936] [2023-02-15 13:32:34,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 13:32:34,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:32:34,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:32:34,157 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:32:34,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process