./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 00:58:02,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 00:58:02,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 00:58:02,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 00:58:02,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 00:58:02,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 00:58:02,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 00:58:02,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 00:58:02,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 00:58:02,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 00:58:02,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 00:58:02,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 00:58:02,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 00:58:02,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 00:58:02,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 00:58:02,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 00:58:02,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 00:58:02,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 00:58:02,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 00:58:02,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 00:58:02,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 00:58:02,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 00:58:02,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 00:58:02,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 00:58:02,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 00:58:02,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 00:58:02,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 00:58:02,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 00:58:02,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 00:58:02,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 00:58:02,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 00:58:02,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 00:58:02,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 00:58:02,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 00:58:02,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 00:58:02,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 00:58:02,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 00:58:02,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 00:58:02,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 00:58:02,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 00:58:02,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 00:58:02,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 00:58:02,109 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 00:58:02,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 00:58:02,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 00:58:02,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 00:58:02,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 00:58:02,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 00:58:02,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 00:58:02,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 00:58:02,111 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 00:58:02,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 00:58:02,112 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 00:58:02,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 00:58:02,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 00:58:02,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 00:58:02,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 00:58:02,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 00:58:02,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 00:58:02,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 00:58:02,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 00:58:02,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 00:58:02,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 00:58:02,116 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 00:58:02,116 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2023-02-18 00:58:02,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 00:58:02,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 00:58:02,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 00:58:02,330 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 00:58:02,331 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 00:58:02,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2023-02-18 00:58:03,274 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 00:58:03,458 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 00:58:03,459 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2023-02-18 00:58:03,462 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08083099d/dc00ab5a3a854681b049a3ab3b8e9c3e/FLAG1ac2d3527 [2023-02-18 00:58:03,473 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08083099d/dc00ab5a3a854681b049a3ab3b8e9c3e [2023-02-18 00:58:03,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 00:58:03,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 00:58:03,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 00:58:03,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 00:58:03,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 00:58:03,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebc59e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03, skipping insertion in model container [2023-02-18 00:58:03,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 00:58:03,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 00:58:03,598 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-zilu/benchmark23_conjunctive.i[873,886] [2023-02-18 00:58:03,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 00:58:03,614 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 00:58:03,623 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-zilu/benchmark23_conjunctive.i[873,886] [2023-02-18 00:58:03,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 00:58:03,634 INFO L208 MainTranslator]: Completed translation [2023-02-18 00:58:03,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03 WrapperNode [2023-02-18 00:58:03,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 00:58:03,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 00:58:03,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 00:58:03,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 00:58:03,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,654 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2023-02-18 00:58:03,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 00:58:03,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 00:58:03,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 00:58:03,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 00:58:03,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 00:58:03,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 00:58:03,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 00:58:03,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 00:58:03,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (1/1) ... [2023-02-18 00:58:03,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 00:58:03,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:03,696 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) [2023-02-18 00:58:03,702 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 [2023-02-18 00:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 00:58:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 00:58:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 00:58:03,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 00:58:03,760 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 00:58:03,762 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 00:58:03,837 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 00:58:03,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 00:58:03,841 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 00:58:03,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 12:58:03 BoogieIcfgContainer [2023-02-18 00:58:03,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 00:58:03,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 00:58:03,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 00:58:03,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 00:58:03,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 12:58:03" (1/3) ... [2023-02-18 00:58:03,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864b1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 12:58:03, skipping insertion in model container [2023-02-18 00:58:03,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:58:03" (2/3) ... [2023-02-18 00:58:03,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864b1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 12:58:03, skipping insertion in model container [2023-02-18 00:58:03,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 12:58:03" (3/3) ... [2023-02-18 00:58:03,847 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2023-02-18 00:58:03,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 00:58:03,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 00:58:03,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 00:58:03,888 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67d552b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 00:58:03,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 00:58:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 00:58:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 00:58:03,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:03,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:03,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:03,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1807089479, now seen corresponding path program 1 times [2023-02-18 00:58:03,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:03,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906801864] [2023-02-18 00:58:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:03,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:04,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906801864] [2023-02-18 00:58:04,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906801864] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 00:58:04,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 00:58:04,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 00:58:04,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889037415] [2023-02-18 00:58:04,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 00:58:04,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 00:58:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:04,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 00:58:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 00:58:04,035 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-02-18 00:58:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:04,046 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-02-18 00:58:04,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 00:58:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-02-18 00:58:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:04,054 INFO L225 Difference]: With dead ends: 20 [2023-02-18 00:58:04,054 INFO L226 Difference]: Without dead ends: 8 [2023-02-18 00:58:04,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 00:58:04,059 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:04,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-18 00:58:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-18 00:58:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 00:58:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-02-18 00:58:04,080 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2023-02-18 00:58:04,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:04,080 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-02-18 00:58:04,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-02-18 00:58:04,081 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-02-18 00:58:04,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 00:58:04,081 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:04,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:04,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 00:58:04,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:04,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1806970315, now seen corresponding path program 1 times [2023-02-18 00:58:04,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:04,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523363784] [2023-02-18 00:58:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:04,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:04,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523363784] [2023-02-18 00:58:04,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523363784] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 00:58:04,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 00:58:04,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 00:58:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205446447] [2023-02-18 00:58:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 00:58:04,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 00:58:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:04,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 00:58:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 00:58:04,164 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-18 00:58:04,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:04,174 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-02-18 00:58:04,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 00:58:04,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-02-18 00:58:04,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:04,175 INFO L225 Difference]: With dead ends: 13 [2023-02-18 00:58:04,175 INFO L226 Difference]: Without dead ends: 9 [2023-02-18 00:58:04,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 00:58:04,180 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:04,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:04,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-18 00:58:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-18 00:58:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 00:58:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-02-18 00:58:04,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2023-02-18 00:58:04,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:04,185 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-02-18 00:58:04,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-18 00:58:04,186 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-02-18 00:58:04,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 00:58:04,188 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:04,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:04,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 00:58:04,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:04,191 INFO L85 PathProgramCache]: Analyzing trace with hash 183170323, now seen corresponding path program 1 times [2023-02-18 00:58:04,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:04,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210095424] [2023-02-18 00:58:04,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:04,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:04,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210095424] [2023-02-18 00:58:04,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210095424] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:04,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591125708] [2023-02-18 00:58:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:04,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:04,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:04,226 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) [2023-02-18 00:58:04,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 00:58:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:04,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 00:58:04,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591125708] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:04,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:04,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-02-18 00:58:04,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024264804] [2023-02-18 00:58:04,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:04,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 00:58:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:04,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 00:58:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 00:58:04,317 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-02-18 00:58:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:04,326 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2023-02-18 00:58:04,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 00:58:04,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 [2023-02-18 00:58:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:04,332 INFO L225 Difference]: With dead ends: 16 [2023-02-18 00:58:04,333 INFO L226 Difference]: Without dead ends: 12 [2023-02-18 00:58:04,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 00:58:04,333 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:04,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-18 00:58:04,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-18 00:58:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-02-18 00:58:04,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-02-18 00:58:04,336 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2023-02-18 00:58:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:04,336 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-02-18 00:58:04,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-02-18 00:58:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-02-18 00:58:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 00:58:04,336 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:04,336 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:04,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:04,549 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 [2023-02-18 00:58:04,549 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:04,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:04,550 INFO L85 PathProgramCache]: Analyzing trace with hash -422592565, now seen corresponding path program 2 times [2023-02-18 00:58:04,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:04,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123641753] [2023-02-18 00:58:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:04,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:04,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123641753] [2023-02-18 00:58:04,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123641753] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:04,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425466698] [2023-02-18 00:58:04,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 00:58:04,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:04,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:04,641 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) [2023-02-18 00:58:04,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 00:58:04,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 00:58:04,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 00:58:04,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 00:58:04,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:04,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425466698] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:04,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:04,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-18 00:58:04,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453775501] [2023-02-18 00:58:04,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:04,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 00:58:04,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:04,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 00:58:04,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 00:58:04,757 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2023-02-18 00:58:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:04,772 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2023-02-18 00:58:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 00:58:04,772 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 11 [2023-02-18 00:58:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:04,772 INFO L225 Difference]: With dead ends: 22 [2023-02-18 00:58:04,773 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 00:58:04,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 00:58:04,773 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 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 [2023-02-18 00:58:04,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 00:58:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-18 00:58:04,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2023-02-18 00:58:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-18 00:58:04,776 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2023-02-18 00:58:04,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:04,776 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-18 00:58:04,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2023-02-18 00:58:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-18 00:58:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 00:58:04,777 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:04,777 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:04,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:04,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-18 00:58:04,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:04,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:04,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1035090635, now seen corresponding path program 3 times [2023-02-18 00:58:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:04,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762021538] [2023-02-18 00:58:04,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:04,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:05,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:05,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762021538] [2023-02-18 00:58:05,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762021538] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:05,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085801239] [2023-02-18 00:58:05,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 00:58:05,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:05,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:05,177 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) [2023-02-18 00:58:05,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 00:58:05,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-02-18 00:58:05,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 00:58:05,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 00:58:05,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:05,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:05,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085801239] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:05,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:05,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-02-18 00:58:05,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037249023] [2023-02-18 00:58:05,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:05,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 00:58:05,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:05,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 00:58:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 00:58:05,510 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 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) [2023-02-18 00:58:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:05,535 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2023-02-18 00:58:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 00:58:05,536 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 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) Word has length 17 [2023-02-18 00:58:05,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:05,536 INFO L225 Difference]: With dead ends: 34 [2023-02-18 00:58:05,536 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 00:58:05,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 00:58:05,537 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:05,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 00:58:05,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-18 00:58:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 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) [2023-02-18 00:58:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2023-02-18 00:58:05,541 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 17 [2023-02-18 00:58:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:05,541 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2023-02-18 00:58:05,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 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) [2023-02-18 00:58:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2023-02-18 00:58:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 00:58:05,542 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:05,542 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:05,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:05,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:05,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash 160329931, now seen corresponding path program 4 times [2023-02-18 00:58:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734951737] [2023-02-18 00:58:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:06,085 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:06,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:06,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734951737] [2023-02-18 00:58:06,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734951737] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:06,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276777617] [2023-02-18 00:58:06,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 00:58:06,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:06,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:06,087 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) [2023-02-18 00:58:06,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 00:58:06,125 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 00:58:06,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 00:58:06,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 00:58:06,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:06,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:06,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276777617] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:06,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:06,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2023-02-18 00:58:06,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513645756] [2023-02-18 00:58:06,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:06,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 00:58:06,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:06,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 00:58:06,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 00:58:06,967 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 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) [2023-02-18 00:58:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:07,023 INFO L93 Difference]: Finished difference Result 58 states and 81 transitions. [2023-02-18 00:58:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 00:58:07,023 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 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 29 [2023-02-18 00:58:07,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:07,024 INFO L225 Difference]: With dead ends: 58 [2023-02-18 00:58:07,024 INFO L226 Difference]: Without dead ends: 54 [2023-02-18 00:58:07,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 13 SyntacticMatches, 22 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 00:58:07,025 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:07,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-18 00:58:07,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-02-18 00:58:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 00:58:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2023-02-18 00:58:07,031 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 29 [2023-02-18 00:58:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:07,031 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2023-02-18 00:58:07,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 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) [2023-02-18 00:58:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2023-02-18 00:58:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-02-18 00:58:07,032 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:07,032 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:07,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:07,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:07,237 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:07,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1226580789, now seen corresponding path program 5 times [2023-02-18 00:58:07,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:07,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617522727] [2023-02-18 00:58:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:07,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:08,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:08,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617522727] [2023-02-18 00:58:08,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617522727] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067156180] [2023-02-18 00:58:08,181 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 00:58:08,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:08,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:08,182 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) [2023-02-18 00:58:08,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 00:58:08,239 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-02-18 00:58:08,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 00:58:08,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 00:58:08,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:08,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:10,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067156180] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:10,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:10,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2023-02-18 00:58:10,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116607538] [2023-02-18 00:58:10,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:10,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 00:58:10,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:10,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 00:58:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 00:58:10,886 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 96 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 96 states have internal predecessors, (101), 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) [2023-02-18 00:58:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:10,973 INFO L93 Difference]: Finished difference Result 106 states and 153 transitions. [2023-02-18 00:58:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 00:58:10,973 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 96 states have internal predecessors, (101), 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 [2023-02-18 00:58:10,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:10,975 INFO L225 Difference]: With dead ends: 106 [2023-02-18 00:58:10,975 INFO L226 Difference]: Without dead ends: 102 [2023-02-18 00:58:10,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 13 SyntacticMatches, 46 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 00:58:10,978 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:10,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:10,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-02-18 00:58:10,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-02-18 00:58:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.00990099009901) internal successors, (102), 101 states have internal predecessors, (102), 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) [2023-02-18 00:58:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2023-02-18 00:58:10,992 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 53 [2023-02-18 00:58:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:10,992 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2023-02-18 00:58:10,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 96 states have internal predecessors, (101), 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) [2023-02-18 00:58:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2023-02-18 00:58:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-02-18 00:58:10,998 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:10,998 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:11,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:11,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:11,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:11,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash 839038155, now seen corresponding path program 6 times [2023-02-18 00:58:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:11,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459660445] [2023-02-18 00:58:11,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:11,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:14,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459660445] [2023-02-18 00:58:14,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459660445] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955291241] [2023-02-18 00:58:14,611 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 00:58:14,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:14,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:14,613 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) [2023-02-18 00:58:14,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 00:58:14,733 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2023-02-18 00:58:14,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 00:58:14,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 00:58:14,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:17,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:20,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955291241] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:20,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:20,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 102 [2023-02-18 00:58:20,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321522462] [2023-02-18 00:58:20,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:20,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-02-18 00:58:20,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:20,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-02-18 00:58:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2023-02-18 00:58:20,184 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 102 states have internal predecessors, (108), 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) [2023-02-18 00:58:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:20,264 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2023-02-18 00:58:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-02-18 00:58:20,265 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 102 states have internal predecessors, (108), 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 101 [2023-02-18 00:58:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:20,268 INFO L225 Difference]: With dead ends: 112 [2023-02-18 00:58:20,268 INFO L226 Difference]: Without dead ends: 108 [2023-02-18 00:58:20,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 13 SyntacticMatches, 184 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8826 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2023-02-18 00:58:20,270 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:20,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:58:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-02-18 00:58:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-02-18 00:58:20,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0093457943925233) internal successors, (108), 107 states have internal predecessors, (108), 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) [2023-02-18 00:58:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2023-02-18 00:58:20,287 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 101 [2023-02-18 00:58:20,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:20,288 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2023-02-18 00:58:20,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 102 states have internal predecessors, (108), 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) [2023-02-18 00:58:20,289 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2023-02-18 00:58:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-02-18 00:58:20,292 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:20,293 INFO L195 NwaCegarLoop]: trace histogram [100, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:20,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:20,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:20,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:20,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:20,498 INFO L85 PathProgramCache]: Analyzing trace with hash 840527819, now seen corresponding path program 7 times [2023-02-18 00:58:20,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:20,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105651752] [2023-02-18 00:58:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:20,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:24,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:24,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105651752] [2023-02-18 00:58:24,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105651752] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:58:24,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568143636] [2023-02-18 00:58:24,790 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 00:58:24,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:24,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:58:24,793 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) [2023-02-18 00:58:24,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 00:58:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:24,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 208 conjunts are in the unsatisfiable core [2023-02-18 00:58:24,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:58:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:28,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:58:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:32,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568143636] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:58:32,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:58:32,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104, 104] total 105 [2023-02-18 00:58:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901047399] [2023-02-18 00:58:32,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:58:32,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2023-02-18 00:58:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:32,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2023-02-18 00:58:32,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=10712, Unknown=0, NotChecked=0, Total=10920 [2023-02-18 00:58:32,023 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand has 105 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 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) [2023-02-18 00:58:35,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:35,194 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2023-02-18 00:58:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-02-18 00:58:35,195 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 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 107 [2023-02-18 00:58:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:35,196 INFO L225 Difference]: With dead ends: 113 [2023-02-18 00:58:35,197 INFO L226 Difference]: Without dead ends: 109 [2023-02-18 00:58:35,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 11 SyntacticMatches, 202 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=213, Invalid=10917, Unknown=0, NotChecked=0, Total=11130 [2023-02-18 00:58:35,202 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 10711 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 10711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:35,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 420 Invalid, 10711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10711 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-02-18 00:58:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-02-18 00:58:35,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-02-18 00:58:35,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0092592592592593) internal successors, (109), 108 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) [2023-02-18 00:58:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2023-02-18 00:58:35,213 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2023-02-18 00:58:35,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:35,213 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2023-02-18 00:58:35,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 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) [2023-02-18 00:58:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2023-02-18 00:58:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-02-18 00:58:35,214 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:58:35,215 INFO L195 NwaCegarLoop]: trace histogram [101, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:58:35,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 00:58:35,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:58:35,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:58:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:58:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 288224019, now seen corresponding path program 8 times [2023-02-18 00:58:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:58:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554494574] [2023-02-18 00:58:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:58:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:58:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:58:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 5151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:58:39,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:58:39,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554494574] [2023-02-18 00:58:39,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554494574] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 00:58:39,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 00:58:39,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2023-02-18 00:58:39,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349904917] [2023-02-18 00:58:39,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 00:58:39,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2023-02-18 00:58:39,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:58:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2023-02-18 00:58:39,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2023-02-18 00:58:39,325 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 103 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 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) [2023-02-18 00:58:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:58:39,572 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2023-02-18 00:58:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-02-18 00:58:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 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 108 [2023-02-18 00:58:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:58:39,573 INFO L225 Difference]: With dead ends: 109 [2023-02-18 00:58:39,573 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 00:58:39,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2023-02-18 00:58:39,574 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 00:58:39,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 00:58:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 00:58:39,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 00:58:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 00:58:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 00:58:39,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2023-02-18 00:58:39,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:58:39,575 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 00:58:39,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 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) [2023-02-18 00:58:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 00:58:39,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 00:58:39,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 00:58:39,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-18 00:58:39,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 00:58:39,586 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 00:58:39,589 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse3 (+ |ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse5 (< .cse3 89)) (.cse15 (< .cse3 91)) (.cse7 (< .cse3 80)) (.cse6 (< .cse3 82)) (.cse10 (< .cse3 85)) (.cse1 (< .cse3 79)) (.cse8 (< |ULTIMATE.start_main_~i~0#1| 100)) (.cse13 (< .cse3 96)) (.cse0 (< .cse3 95)) (.cse12 (< .cse3 98)) (.cse4 (< .cse3 81)) (.cse22 (< .cse3 87)) (.cse14 (< .cse3 94)) (.cse11 (< .cse3 100)) (.cse23 (< .cse3 88)) (.cse2 (< .cse3 93)) (.cse18 (< .cse3 84)) (.cse19 (< .cse3 99)) (.cse9 (< .cse3 97)) (.cse17 (< .cse3 86)) (.cse25 (< .cse3 83)) (.cse16 (< .cse3 92)) (.cse24 (< .cse3 90))) (or (and (<= |ULTIMATE.start_main_~j~0#1| 30) (<= 0 (+ (- 15) |ULTIMATE.start_main_~i~0#1|)) .cse0 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 30))) (<= |ULTIMATE.start_main_~i~0#1| 15)) (and (<= |ULTIMATE.start_main_~i~0#1| 23) (<= 0 (+ (- 46) |ULTIMATE.start_main_~j~0#1|)) .cse1 (<= |ULTIMATE.start_main_~j~0#1| 46) (<= 0 (+ (- 23) |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 37) (<= 0 (+ (- 37) |ULTIMATE.start_main_~i~0#1|)) .cse2 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 74))) (<= |ULTIMATE.start_main_~j~0#1| 74)) (and (<= 0 (+ (- 49) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 49) (<= |ULTIMATE.start_main_~j~0#1| 98) (< .cse3 57) (<= 0 (+ (- 98) |ULTIMATE.start_main_~j~0#1|))) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 132))) (<= |ULTIMATE.start_main_~j~0#1| 132) (<= |ULTIMATE.start_main_~i~0#1| 66) (< .cse3 74) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 66)))) (and .cse4 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 73))) (<= |ULTIMATE.start_main_~j~0#1| 146) (<= |ULTIMATE.start_main_~i~0#1| 73) (<= 0 (+ (- 146) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~j~0#1| 162) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 81))) (<= 0 (+ (- 162) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 81) .cse5) (and (<= |ULTIMATE.start_main_~j~0#1| 104) (<= |ULTIMATE.start_main_~i~0#1| 52) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 104))) (< .cse3 60) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 52)))) (and (<= |ULTIMATE.start_main_~i~0#1| 74) (<= |ULTIMATE.start_main_~j~0#1| 148) .cse6 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 74))) (<= 0 (+ (- 148) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 10) (<= 0 (+ (- 20) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 10))) (<= |ULTIMATE.start_main_~j~0#1| 20)) (and (<= 0 (+ (- 144) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ (- 72) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 72) .cse7 (<= |ULTIMATE.start_main_~j~0#1| 144)) (and (<= |ULTIMATE.start_main_~j~0#1| 198) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 198))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 99))) .cse8) (and .cse9 (<= |ULTIMATE.start_main_~j~0#1| 34) (<= 0 (+ (- 34) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 17) (<= 0 (+ (- 17) |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 77) (<= |ULTIMATE.start_main_~j~0#1| 154) .cse10 (<= 0 (+ (- 77) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 154)))) (and (<= 0 (+ (- 9) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 18))) (<= |ULTIMATE.start_main_~j~0#1| 18) .cse8 (<= |ULTIMATE.start_main_~i~0#1| 9)) (and (<= 0 (+ (- 2) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 2) (<= 0 (+ (- 1) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (<= |ULTIMATE.start_main_~i~0#1| 20) .cse11 (<= 0 (+ (- 40) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 40) (<= 0 (+ (- 20) |ULTIMATE.start_main_~i~0#1|))) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 12))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 6))) .cse12 (<= |ULTIMATE.start_main_~i~0#1| 6) (<= |ULTIMATE.start_main_~j~0#1| 12)) (and (<= |ULTIMATE.start_main_~i~0#1| 40) (<= 0 (+ (- 40) |ULTIMATE.start_main_~i~0#1|)) .cse13 (<= |ULTIMATE.start_main_~j~0#1| 80) (<= 0 (+ (- 80) |ULTIMATE.start_main_~j~0#1|))) (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 21))) (<= |ULTIMATE.start_main_~j~0#1| 42) .cse8 (<= |ULTIMATE.start_main_~i~0#1| 21) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 42)))) (and .cse12 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 84))) (<= |ULTIMATE.start_main_~i~0#1| 42) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 42))) (<= |ULTIMATE.start_main_~j~0#1| 84)) (and (<= |ULTIMATE.start_main_~j~0#1| 4) (<= 0 (+ (- 2) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 2) .cse11 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 4)))) (and (<= |ULTIMATE.start_main_~i~0#1| 38) (<= 0 (+ (- 76) |ULTIMATE.start_main_~j~0#1|)) .cse14 (<= |ULTIMATE.start_main_~j~0#1| 76) (<= 0 (+ (- 38) |ULTIMATE.start_main_~i~0#1|))) (and (<= 0 (+ (- 33) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 66))) (<= |ULTIMATE.start_main_~j~0#1| 66) .cse5 (<= |ULTIMATE.start_main_~i~0#1| 33)) (and (<= |ULTIMATE.start_main_~i~0#1| 83) (<= |ULTIMATE.start_main_~j~0#1| 166) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 83))) (<= 0 (+ (- 166) |ULTIMATE.start_main_~j~0#1|)) .cse15) (and (<= |ULTIMATE.start_main_~j~0#1| 70) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 35))) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 70))) (<= |ULTIMATE.start_main_~i~0#1| 35) .cse15) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 78))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 39))) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 78) (<= |ULTIMATE.start_main_~i~0#1| 39)) (and (<= |ULTIMATE.start_main_~i~0#1| 56) (<= 0 (+ (- 112) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 112) (< .cse3 64) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 56)))) (and (<= |ULTIMATE.start_main_~i~0#1| 11) (<= 0 (+ (- 22) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 22) (<= 0 (+ (- 11) |ULTIMATE.start_main_~i~0#1|)) .cse15) (and (<= |ULTIMATE.start_main_~i~0#1| 3) .cse8 (<= 0 (+ (- 3) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 6))) (<= |ULTIMATE.start_main_~j~0#1| 6)) (and (<= |ULTIMATE.start_main_~j~0#1| 188) (<= 0 (+ (- 94) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 94) (<= 0 (+ (- 188) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~j~0#1| 172) (<= |ULTIMATE.start_main_~i~0#1| 86) (<= 0 (+ (- 86) |ULTIMATE.start_main_~i~0#1|)) .cse14 (<= 0 (+ (- 172) |ULTIMATE.start_main_~j~0#1|))) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 96))) (< .cse3 56) (<= |ULTIMATE.start_main_~i~0#1| 48) (<= |ULTIMATE.start_main_~j~0#1| 96) (<= 0 (+ (- 48) |ULTIMATE.start_main_~i~0#1|))) (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 24))) (<= |ULTIMATE.start_main_~j~0#1| 48) (<= 0 (+ (- 48) |ULTIMATE.start_main_~j~0#1|)) .cse7 (<= |ULTIMATE.start_main_~i~0#1| 24)) (and (<= |ULTIMATE.start_main_~j~0#1| 72) .cse16 (<= 0 (+ (- 72) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ (- 36) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 36)) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 52))) (<= |ULTIMATE.start_main_~j~0#1| 52) (<= |ULTIMATE.start_main_~i~0#1| 26) (<= 0 (+ (- 26) |ULTIMATE.start_main_~i~0#1|)) .cse6) (and (<= |ULTIMATE.start_main_~i~0#1| 53) (< .cse3 61) (<= |ULTIMATE.start_main_~j~0#1| 106) (<= 0 (+ (- 53) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 106)))) (and (<= |ULTIMATE.start_main_~j~0#1| 58) (<= |ULTIMATE.start_main_~i~0#1| 29) (<= 0 (+ (- 29) |ULTIMATE.start_main_~i~0#1|)) .cse10 (<= 0 (+ (- 58) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 30) .cse17 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 30))) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 60))) (<= |ULTIMATE.start_main_~j~0#1| 60)) (and (<= |ULTIMATE.start_main_~i~0#1| 28) .cse18 (<= 0 (+ (- 28) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 56))) (<= |ULTIMATE.start_main_~j~0#1| 56)) (and (< .cse3 65) (<= |ULTIMATE.start_main_~i~0#1| 57) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 114))) (<= |ULTIMATE.start_main_~j~0#1| 114) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 57)))) (and .cse1 (<= 0 (+ (- 71) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ (- 142) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 142) (<= |ULTIMATE.start_main_~i~0#1| 71)) (and (<= |ULTIMATE.start_main_~i~0#1| 88) (<= 0 (+ (- 88) |ULTIMATE.start_main_~i~0#1|)) .cse13 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 176))) (<= |ULTIMATE.start_main_~j~0#1| 176)) (and (<= 0 (+ (- 38) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 38) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 19))) (<= |ULTIMATE.start_main_~i~0#1| 19) .cse19) (let ((.cse20 (<= (+ (- 199) |ULTIMATE.start_main_~j~0#1|) 0)) (.cse21 (+ |ULTIMATE.start_main_~j~0#1| (- 200)))) (and (or .cse20 (<= .cse21 0) (<= |ULTIMATE.start_main_~j~0#1| 200)) (or (not .cse20) (<= 0 .cse21)) (<= 0 (+ (- 100) |ULTIMATE.start_main_~i~0#1|)))) (and .cse12 (<= |ULTIMATE.start_main_~j~0#1| 192) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 96))) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 192)))) (and (<= 0 (+ (- 62) |ULTIMATE.start_main_~j~0#1|)) .cse22 (<= |ULTIMATE.start_main_~j~0#1| 62) (<= 0 (+ (- 31) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 31)) (and (<= 0 (+ (- 16) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 8) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 8))) (<= |ULTIMATE.start_main_~j~0#1| 16) .cse11) (and (<= |ULTIMATE.start_main_~i~0#1| 58) (<= |ULTIMATE.start_main_~j~0#1| 116) (< .cse3 66) (<= 0 (+ (- 58) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ (- 116) |ULTIMATE.start_main_~j~0#1|))) (and (<= 0 (+ (- 186) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 93))) .cse8 (<= |ULTIMATE.start_main_~j~0#1| 186) (<= |ULTIMATE.start_main_~i~0#1| 93)) (and (<= |ULTIMATE.start_main_~j~0#1| 8) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 4))) (<= |ULTIMATE.start_main_~i~0#1| 4) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 8)))) (and (<= |ULTIMATE.start_main_~j~0#1| 118) (< .cse3 67) (<= 0 (+ (- 118) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ (- 59) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 59)) (and (<= |ULTIMATE.start_main_~i~0#1| 90) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 90))) (<= |ULTIMATE.start_main_~j~0#1| 180) .cse12 (<= 0 (+ (- 180) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 45) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 90))) (<= 0 (+ (- 45) |ULTIMATE.start_main_~i~0#1|)) .cse8 (<= |ULTIMATE.start_main_~j~0#1| 90)) (and (<= |ULTIMATE.start_main_~j~0#1| 92) (<= 0 (+ (- 46) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 46) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 92)))) (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 0)) (and (<= 0 (+ (- 22) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ (- 44) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 22) (<= |ULTIMATE.start_main_~j~0#1| 44)) (and (<= |ULTIMATE.start_main_~j~0#1| 120) (< .cse3 68) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 60))) (<= |ULTIMATE.start_main_~i~0#1| 60) (<= 0 (+ (- 120) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 63) (<= 0 (+ (- 126) |ULTIMATE.start_main_~j~0#1|)) (< .cse3 71) (<= |ULTIMATE.start_main_~j~0#1| 126) (<= 0 (+ (- 63) |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~j~0#1| 138) (<= 0 (+ (- 138) |ULTIMATE.start_main_~j~0#1|)) (< .cse3 77) (<= 0 (+ (- 69) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 69)) (and (<= |ULTIMATE.start_main_~j~0#1| 10) .cse9 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 10))) (<= |ULTIMATE.start_main_~i~0#1| 5) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 5)))) (and (<= |ULTIMATE.start_main_~i~0#1| 92) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 184))) (<= |ULTIMATE.start_main_~j~0#1| 184) .cse11 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 92)))) (and (<= |ULTIMATE.start_main_~i~0#1| 16) .cse13 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 32))) (<= 0 (+ (- 16) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 32)) (and (<= |ULTIMATE.start_main_~i~0#1| 87) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 174))) (<= |ULTIMATE.start_main_~j~0#1| 174) (<= 0 (+ (- 87) |ULTIMATE.start_main_~i~0#1|)) .cse0) (and (<= |ULTIMATE.start_main_~j~0#1| 136) (<= |ULTIMATE.start_main_~i~0#1| 68) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 68))) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 136))) (< .cse3 76)) (and (<= 0 (+ (- 44) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 88) .cse11 (<= 0 (+ (- 88) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 44)) (and (<= 0 (+ (- 36) |ULTIMATE.start_main_~j~0#1|)) .cse12 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 18))) (<= |ULTIMATE.start_main_~j~0#1| 36) (<= |ULTIMATE.start_main_~i~0#1| 18)) (and (<= |ULTIMATE.start_main_~j~0#1| 24) (<= |ULTIMATE.start_main_~i~0#1| 12) .cse16 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 24))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 12)))) (and (<= 0 (+ (- 55) |ULTIMATE.start_main_~i~0#1|)) (< .cse3 63) (<= |ULTIMATE.start_main_~i~0#1| 55) (<= 0 (+ (- 110) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 110)) (and .cse9 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 41))) (<= |ULTIMATE.start_main_~i~0#1| 41) (<= |ULTIMATE.start_main_~j~0#1| 82) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 82)))) (and (< .cse3 73) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 130))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 65))) (<= |ULTIMATE.start_main_~i~0#1| 65) (<= |ULTIMATE.start_main_~j~0#1| 130)) (and (< .cse3 58) (<= 0 (+ (- 100) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 50))) (<= |ULTIMATE.start_main_~j~0#1| 100) (<= |ULTIMATE.start_main_~i~0#1| 50)) (and (<= |ULTIMATE.start_main_~i~0#1| 64) (<= |ULTIMATE.start_main_~j~0#1| 128) (< .cse3 72) (<= 0 (+ (- 64) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 128)))) (and (< .cse3 75) (<= 0 (+ (- 134) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 67) (<= |ULTIMATE.start_main_~j~0#1| 134) (<= 0 (+ (- 67) |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~j~0#1| 160) .cse23 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 160))) (<= |ULTIMATE.start_main_~i~0#1| 80) (<= 0 (+ (- 80) |ULTIMATE.start_main_~i~0#1|))) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 50))) .cse4 (<= |ULTIMATE.start_main_~j~0#1| 50) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 25))) (<= |ULTIMATE.start_main_~i~0#1| 25)) (and (<= |ULTIMATE.start_main_~j~0#1| 170) (<= |ULTIMATE.start_main_~i~0#1| 85) (<= 0 (+ (- 170) |ULTIMATE.start_main_~j~0#1|)) .cse2 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 85)))) (and (<= |ULTIMATE.start_main_~i~0#1| 79) .cse22 (<= 0 (+ (- 79) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 158) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 158)))) (and (<= |ULTIMATE.start_main_~i~0#1| 62) (<= |ULTIMATE.start_main_~j~0#1| 124) (<= 0 (+ (- 124) |ULTIMATE.start_main_~j~0#1|)) (< .cse3 70) (<= 0 (+ (- 62) |ULTIMATE.start_main_~i~0#1|))) (and .cse14 (<= 0 (+ (- 14) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 14) (<= 0 (+ (- 28) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 28)) (and (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 68))) (<= 0 (+ (- 34) |ULTIMATE.start_main_~i~0#1|)) .cse24 (<= |ULTIMATE.start_main_~j~0#1| 68) (<= |ULTIMATE.start_main_~i~0#1| 34)) (and (<= 0 (+ (- 98) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ (- 196) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 196) .cse11) (and (<= |ULTIMATE.start_main_~j~0#1| 64) .cse23 (<= 0 (+ (- 64) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 32))) (<= |ULTIMATE.start_main_~i~0#1| 32)) (and (<= |ULTIMATE.start_main_~j~0#1| 54) (<= 0 (+ (- 27) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 54))) .cse25 (<= |ULTIMATE.start_main_~i~0#1| 27)) (and (<= |ULTIMATE.start_main_~i~0#1| 13) .cse2 (<= 0 (+ (- 13) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ (- 26) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 26)) (and (<= |ULTIMATE.start_main_~i~0#1| 51) (<= |ULTIMATE.start_main_~j~0#1| 102) (< .cse3 59) (<= 0 (+ (- 102) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ (- 51) |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~j~0#1| 140) (< .cse3 78) (<= 0 (+ (- 140) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 70) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 70)))) (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 97))) .cse19 (<= |ULTIMATE.start_main_~j~0#1| 194) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 194)))) (and .cse18 (<= |ULTIMATE.start_main_~i~0#1| 76) (<= 0 (+ (- 152) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 152) (<= 0 (+ (- 76) |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 61) (< .cse3 69) (<= 0 (+ (- 61) |ULTIMATE.start_main_~i~0#1|)) (<= 0 (+ (- 122) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 122)) (and (<= |ULTIMATE.start_main_~j~0#1| 182) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 182))) (<= |ULTIMATE.start_main_~i~0#1| 91) .cse19 (<= 0 (+ (- 91) |ULTIMATE.start_main_~i~0#1|))) (and (<= 0 (+ (- 86) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 43) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 43))) .cse19 (<= |ULTIMATE.start_main_~j~0#1| 86)) (and (<= |ULTIMATE.start_main_~j~0#1| 14) .cse19 (<= 0 (+ (- 14) |ULTIMATE.start_main_~j~0#1|)) (<= 0 (+ (- 7) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 7)) (and (<= |ULTIMATE.start_main_~j~0#1| 108) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 108))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 54))) (<= |ULTIMATE.start_main_~i~0#1| 54) (< .cse3 62)) (and .cse9 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 178))) (<= |ULTIMATE.start_main_~i~0#1| 89) (<= 0 (+ (- 89) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 178)) (and .cse9 (<= |ULTIMATE.start_main_~j~0#1| 190) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 95))) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 190)))) (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 78))) (<= |ULTIMATE.start_main_~j~0#1| 156) .cse17 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 156))) (<= |ULTIMATE.start_main_~i~0#1| 78)) (and (<= 0 (+ (- 150) |ULTIMATE.start_main_~j~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 75) (<= 0 (+ (- 75) |ULTIMATE.start_main_~i~0#1|)) .cse25 (<= |ULTIMATE.start_main_~j~0#1| 150)) (and .cse16 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| (- 168))) (<= |ULTIMATE.start_main_~j~0#1| 168) (<= |ULTIMATE.start_main_~i~0#1| 84) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 84)))) (and (< .cse3 55) (<= |ULTIMATE.start_main_~i~0#1| 47) (<= 0 (+ (- 47) |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~j~0#1| 94) (<= 0 (+ (- 94) |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~j~0#1| 164) (<= |ULTIMATE.start_main_~i~0#1| 82) (<= 0 (+ (- 164) |ULTIMATE.start_main_~j~0#1|)) .cse24 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| (- 82))))))) [2023-02-18 00:58:39,589 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2023-02-18 00:58:39,589 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 29) the Hoare annotation is: true [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 00:58:39,590 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2023-02-18 00:58:39,592 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1] [2023-02-18 00:58:39,594 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 00:58:39,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 12:58:39 BoogieIcfgContainer [2023-02-18 00:58:39,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 00:58:39,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 00:58:39,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 00:58:39,622 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 00:58:39,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 12:58:03" (3/4) ... [2023-02-18 00:58:39,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 00:58:39,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-18 00:58:39,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-18 00:58:39,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 00:58:39,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 00:58:39,653 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 00:58:39,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 00:58:39,654 INFO L158 Benchmark]: Toolchain (without parser) took 36178.62ms. Allocated memory was 123.7MB in the beginning and 285.2MB in the end (delta: 161.5MB). Free memory was 93.6MB in the beginning and 98.6MB in the end (delta: -5.0MB). Peak memory consumption was 157.8MB. Max. memory is 16.1GB. [2023-02-18 00:58:39,654 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 00:58:39,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.73ms. Allocated memory is still 123.7MB. Free memory was 93.6MB in the beginning and 83.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 00:58:39,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.12ms. Allocated memory is still 123.7MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 00:58:39,655 INFO L158 Benchmark]: Boogie Preprocessor took 17.54ms. Allocated memory is still 123.7MB. Free memory was 81.8MB in the beginning and 80.9MB in the end (delta: 979.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 00:58:39,655 INFO L158 Benchmark]: RCFGBuilder took 168.72ms. Allocated memory is still 123.7MB. Free memory was 80.9MB in the beginning and 71.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 00:58:39,655 INFO L158 Benchmark]: TraceAbstraction took 35777.91ms. Allocated memory was 123.7MB in the beginning and 285.2MB in the end (delta: 161.5MB). Free memory was 71.3MB in the beginning and 100.7MB in the end (delta: -29.4MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. [2023-02-18 00:58:39,655 INFO L158 Benchmark]: Witness Printer took 32.17ms. Allocated memory is still 285.2MB. Free memory was 100.7MB in the beginning and 98.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 00:58:39,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.73ms. Allocated memory is still 123.7MB. Free memory was 93.6MB in the beginning and 83.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.12ms. Allocated memory is still 123.7MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.54ms. Allocated memory is still 123.7MB. Free memory was 81.8MB in the beginning and 80.9MB in the end (delta: 979.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 168.72ms. Allocated memory is still 123.7MB. Free memory was 80.9MB in the beginning and 71.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 35777.91ms. Allocated memory was 123.7MB in the beginning and 285.2MB in the end (delta: 161.5MB). Free memory was 71.3MB in the beginning and 100.7MB in the end (delta: -29.4MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. * Witness Printer took 32.17ms. Allocated memory is still 285.2MB. Free memory was 100.7MB in the beginning and 98.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35.7s, OverallIterations: 10, TraceHistogramMax: 101, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 589 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 518 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11529 IncrementalHoareTripleChecker+Invalid, 11534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 71 mSDtfsCounter, 11529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1046 GetRequests, 95 SyntacticMatches, 469 SemanticMatches, 482 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10143 ImplicationChecksByTransitivity, 25.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=9, InterpolantAutomatonStates: 500, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 2168 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 29.4s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 94 NumberOfCheckSat, 1076 ConstructedInterpolants, 0 QuantifiedInterpolants, 5323 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1644 ConjunctsInSsa, 397 ConjunctsInUnsatCore, 24 InterpolantComputations, 3 PerfectInterpolantSequences, 5151/37896 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j <= 30 && 0 <= -15 + i) && i + 1 < 95) && 0 <= j + -30) && i <= 15) || ((((i <= 23 && 0 <= -46 + j) && i + 1 < 79) && j <= 46) && 0 <= -23 + i)) || ((((i <= 37 && 0 <= -37 + i) && i + 1 < 93) && 0 <= j + -74) && j <= 74)) || ((((0 <= -49 + i && i <= 49) && j <= 98) && i + 1 < 57) && 0 <= -98 + j)) || ((((0 <= j + -132 && j <= 132) && i <= 66) && i + 1 < 74) && 0 <= i + -66)) || ((((i + 1 < 81 && 0 <= i + -73) && j <= 146) && i <= 73) && 0 <= -146 + j)) || ((((j <= 162 && 0 <= i + -81) && 0 <= -162 + j) && i <= 81) && i + 1 < 89)) || ((((j <= 104 && i <= 52) && 0 <= j + -104) && i + 1 < 60) && 0 <= i + -52)) || ((((i <= 74 && j <= 148) && i + 1 < 82) && 0 <= i + -74) && 0 <= -148 + j)) || (((i <= 10 && 0 <= -20 + j) && 0 <= i + -10) && j <= 20)) || ((((0 <= -144 + j && 0 <= -72 + i) && i <= 72) && i + 1 < 80) && j <= 144)) || (((j <= 198 && 0 <= j + -198) && 0 <= i + -99) && i < 100)) || ((((i + 1 < 97 && j <= 34) && 0 <= -34 + j) && i <= 17) && 0 <= -17 + i)) || ((((i <= 77 && j <= 154) && i + 1 < 85) && 0 <= -77 + i) && 0 <= j + -154)) || ((((0 <= -9 + i && 0 <= j + -18) && j <= 18) && i < 100) && i <= 9)) || (((0 <= -2 + j && j <= 2) && 0 <= -1 + i) && i <= 1)) || ((((i <= 20 && i + 1 < 100) && 0 <= -40 + j) && j <= 40) && 0 <= -20 + i)) || ((((0 <= j + -12 && 0 <= i + -6) && i + 1 < 98) && i <= 6) && j <= 12)) || ((((i <= 40 && 0 <= -40 + i) && i + 1 < 96) && j <= 80) && 0 <= -80 + j)) || ((((0 <= i + -21 && j <= 42) && i < 100) && i <= 21) && 0 <= j + -42)) || ((((i + 1 < 98 && 0 <= j + -84) && i <= 42) && 0 <= i + -42) && j <= 84)) || ((((j <= 4 && 0 <= -2 + i) && i <= 2) && i + 1 < 100) && 0 <= j + -4)) || ((((i <= 38 && 0 <= -76 + j) && i + 1 < 94) && j <= 76) && 0 <= -38 + i)) || ((((0 <= -33 + i && 0 <= j + -66) && j <= 66) && i + 1 < 89) && i <= 33)) || ((((i <= 83 && j <= 166) && 0 <= i + -83) && 0 <= -166 + j) && i + 1 < 91)) || ((((j <= 70 && 0 <= i + -35) && 0 <= j + -70) && i <= 35) && i + 1 < 91)) || ((((0 <= j + -78 && 0 <= i + -39) && i + 1 < 95) && j <= 78) && i <= 39)) || ((((i <= 56 && 0 <= -112 + j) && j <= 112) && i + 1 < 64) && 0 <= i + -56)) || ((((i <= 11 && 0 <= -22 + j) && j <= 22) && 0 <= -11 + i) && i + 1 < 91)) || ((((i <= 3 && i < 100) && 0 <= -3 + i) && 0 <= j + -6) && j <= 6)) || (((j <= 188 && 0 <= -94 + i) && i <= 94) && 0 <= -188 + j)) || ((((j <= 172 && i <= 86) && 0 <= -86 + i) && i + 1 < 94) && 0 <= -172 + j)) || ((((0 <= j + -96 && i + 1 < 56) && i <= 48) && j <= 96) && 0 <= -48 + i)) || ((((0 <= i + -24 && j <= 48) && 0 <= -48 + j) && i + 1 < 80) && i <= 24)) || ((((j <= 72 && i + 1 < 92) && 0 <= -72 + j) && 0 <= -36 + i) && i <= 36)) || ((((0 <= j + -52 && j <= 52) && i <= 26) && 0 <= -26 + i) && i + 1 < 82)) || ((((i <= 53 && i + 1 < 61) && j <= 106) && 0 <= -53 + i) && 0 <= j + -106)) || ((((j <= 58 && i <= 29) && 0 <= -29 + i) && i + 1 < 85) && 0 <= -58 + j)) || ((((i <= 30 && i + 1 < 86) && 0 <= i + -30) && 0 <= j + -60) && j <= 60)) || ((((i <= 28 && i + 1 < 84) && 0 <= -28 + i) && 0 <= j + -56) && j <= 56)) || ((((i + 1 < 65 && i <= 57) && 0 <= j + -114) && j <= 114) && 0 <= i + -57)) || ((((i + 1 < 79 && 0 <= -71 + i) && 0 <= -142 + j) && j <= 142) && i <= 71)) || ((((i <= 88 && 0 <= -88 + i) && i + 1 < 96) && 0 <= j + -176) && j <= 176)) || ((((0 <= -38 + j && j <= 38) && 0 <= i + -19) && i <= 19) && i + 1 < 99)) || ((((-199 + j <= 0 || j + -200 <= 0) || j <= 200) && (!(-199 + j <= 0) || 0 <= j + -200)) && 0 <= -100 + i)) || (((i + 1 < 98 && j <= 192) && 0 <= i + -96) && 0 <= j + -192)) || ((((0 <= -62 + j && i + 1 < 87) && j <= 62) && 0 <= -31 + i) && i <= 31)) || ((((0 <= -16 + j && i <= 8) && 0 <= i + -8) && j <= 16) && i + 1 < 100)) || ((((i <= 58 && j <= 116) && i + 1 < 66) && 0 <= -58 + i) && 0 <= -116 + j)) || ((((0 <= -186 + j && 0 <= i + -93) && i < 100) && j <= 186) && i <= 93)) || (((j <= 8 && 0 <= i + -4) && i <= 4) && 0 <= j + -8)) || ((((j <= 118 && i + 1 < 67) && 0 <= -118 + j) && 0 <= -59 + i) && i <= 59)) || ((((i <= 90 && 0 <= i + -90) && j <= 180) && i + 1 < 98) && 0 <= -180 + j)) || ((((i <= 45 && 0 <= j + -90) && 0 <= -45 + i) && i < 100) && j <= 90)) || (((j <= 92 && 0 <= -46 + i) && i <= 46) && 0 <= j + -92)) || (((i <= 0 && 0 <= j) && 0 <= i) && j <= 0)) || (((0 <= -22 + i && 0 <= -44 + j) && i <= 22) && j <= 44)) || ((((j <= 120 && i + 1 < 68) && 0 <= i + -60) && i <= 60) && 0 <= -120 + j)) || ((((i <= 63 && 0 <= -126 + j) && i + 1 < 71) && j <= 126) && 0 <= -63 + i)) || ((((j <= 138 && 0 <= -138 + j) && i + 1 < 77) && 0 <= -69 + i) && i <= 69)) || ((((j <= 10 && i + 1 < 97) && 0 <= j + -10) && i <= 5) && 0 <= i + -5)) || ((((i <= 92 && 0 <= j + -184) && j <= 184) && i + 1 < 100) && 0 <= i + -92)) || ((((i <= 16 && i + 1 < 96) && 0 <= j + -32) && 0 <= -16 + i) && j <= 32)) || ((((i <= 87 && 0 <= j + -174) && j <= 174) && 0 <= -87 + i) && i + 1 < 95)) || ((((j <= 136 && i <= 68) && 0 <= i + -68) && 0 <= j + -136) && i + 1 < 76)) || ((((0 <= -44 + i && j <= 88) && i + 1 < 100) && 0 <= -88 + j) && i <= 44)) || ((((0 <= -36 + j && i + 1 < 98) && 0 <= i + -18) && j <= 36) && i <= 18)) || ((((j <= 24 && i <= 12) && i + 1 < 92) && 0 <= j + -24) && 0 <= i + -12)) || ((((0 <= -55 + i && i + 1 < 63) && i <= 55) && 0 <= -110 + j) && j <= 110)) || ((((i + 1 < 97 && 0 <= i + -41) && i <= 41) && j <= 82) && 0 <= j + -82)) || ((((i + 1 < 73 && 0 <= j + -130) && 0 <= i + -65) && i <= 65) && j <= 130)) || ((((i + 1 < 58 && 0 <= -100 + j) && 0 <= i + -50) && j <= 100) && i <= 50)) || ((((i <= 64 && j <= 128) && i + 1 < 72) && 0 <= -64 + i) && 0 <= j + -128)) || ((((i + 1 < 75 && 0 <= -134 + j) && i <= 67) && j <= 134) && 0 <= -67 + i)) || ((((j <= 160 && i + 1 < 88) && 0 <= j + -160) && i <= 80) && 0 <= -80 + i)) || ((((0 <= j + -50 && i + 1 < 81) && j <= 50) && 0 <= i + -25) && i <= 25)) || ((((j <= 170 && i <= 85) && 0 <= -170 + j) && i + 1 < 93) && 0 <= i + -85)) || ((((i <= 79 && i + 1 < 87) && 0 <= -79 + i) && j <= 158) && 0 <= j + -158)) || ((((i <= 62 && j <= 124) && 0 <= -124 + j) && i + 1 < 70) && 0 <= -62 + i)) || ((((i + 1 < 94 && 0 <= -14 + i) && i <= 14) && 0 <= -28 + j) && j <= 28)) || ((((0 <= j + -68 && 0 <= -34 + i) && i + 1 < 90) && j <= 68) && i <= 34)) || (((0 <= -98 + i && 0 <= -196 + j) && j <= 196) && i + 1 < 100)) || ((((j <= 64 && i + 1 < 88) && 0 <= -64 + j) && 0 <= i + -32) && i <= 32)) || ((((j <= 54 && 0 <= -27 + i) && 0 <= j + -54) && i + 1 < 83) && i <= 27)) || ((((i <= 13 && i + 1 < 93) && 0 <= -13 + i) && 0 <= -26 + j) && j <= 26)) || ((((i <= 51 && j <= 102) && i + 1 < 59) && 0 <= -102 + j) && 0 <= -51 + i)) || ((((j <= 140 && i + 1 < 78) && 0 <= -140 + j) && i <= 70) && 0 <= i + -70)) || (((0 <= i + -97 && i + 1 < 99) && j <= 194) && 0 <= j + -194)) || ((((i + 1 < 84 && i <= 76) && 0 <= -152 + j) && j <= 152) && 0 <= -76 + i)) || ((((i <= 61 && i + 1 < 69) && 0 <= -61 + i) && 0 <= -122 + j) && j <= 122)) || ((((j <= 182 && 0 <= j + -182) && i <= 91) && i + 1 < 99) && 0 <= -91 + i)) || ((((0 <= -86 + j && i <= 43) && 0 <= i + -43) && i + 1 < 99) && j <= 86)) || ((((j <= 14 && i + 1 < 99) && 0 <= -14 + j) && 0 <= -7 + i) && i <= 7)) || ((((j <= 108 && 0 <= j + -108) && 0 <= i + -54) && i <= 54) && i + 1 < 62)) || ((((i + 1 < 97 && 0 <= j + -178) && i <= 89) && 0 <= -89 + i) && j <= 178)) || (((i + 1 < 97 && j <= 190) && 0 <= i + -95) && 0 <= j + -190)) || ((((0 <= i + -78 && j <= 156) && i + 1 < 86) && 0 <= j + -156) && i <= 78)) || ((((0 <= -150 + j && i <= 75) && 0 <= -75 + i) && i + 1 < 83) && j <= 150)) || ((((i + 1 < 92 && 0 <= j + -168) && j <= 168) && i <= 84) && 0 <= i + -84)) || ((((i + 1 < 55 && i <= 47) && 0 <= -47 + i) && j <= 94) && 0 <= -94 + j)) || ((((j <= 164 && i <= 82) && 0 <= -164 + j) && i + 1 < 90) && 0 <= i + -82) RESULT: Ultimate proved your program to be correct! [2023-02-18 00:58:39,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE