./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/max10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/reducercommutativity/max10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-11 22:13:27,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-11 22:13:27,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-11 22:13:27,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-11 22:13:27,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-11 22:13:27,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-11 22:13:27,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-11 22:13:27,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-11 22:13:27,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-11 22:13:27,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-11 22:13:27,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-11 22:13:27,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-11 22:13:27,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-11 22:13:27,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-11 22:13:27,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-11 22:13:27,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-11 22:13:27,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-11 22:13:27,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-11 22:13:27,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-11 22:13:27,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-11 22:13:27,609 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-11 22:13:27,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-11 22:13:27,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-11 22:13:27,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-11 22:13:27,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-11 22:13:27,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-11 22:13:27,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-11 22:13:27,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-11 22:13:27,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-11 22:13:27,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-11 22:13:27,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-11 22:13:27,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-11 22:13:27,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-11 22:13:27,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-11 22:13:27,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-11 22:13:27,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-11 22:13:27,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-11 22:13:27,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-11 22:13:27,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-11 22:13:27,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-11 22:13:27,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-11 22:13:27,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-11 22:13:27,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-11 22:13:27,660 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-11 22:13:27,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-11 22:13:27,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-11 22:13:27,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-11 22:13:27,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-11 22:13:27,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-11 22:13:27,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-11 22:13:27,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-11 22:13:27,664 INFO L138 SettingsManager]: * Use SBE=true [2022-07-11 22:13:27,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-11 22:13:27,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-11 22:13:27,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-11 22:13:27,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-11 22:13:27,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-11 22:13:27,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-11 22:13:27,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-11 22:13:27,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-11 22:13:27,666 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-11 22:13:27,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-11 22:13:27,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-11 22:13:27,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-11 22:13:27,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-11 22:13:27,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-11 22:13:27,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-11 22:13:27,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 22:13:27,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-11 22:13:27,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-11 22:13:27,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-11 22:13:27,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-11 22:13:27,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-11 22:13:27,670 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-11 22:13:27,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-11 22:13:27,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-11 22:13:27,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e [2022-07-11 22:13:27,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-11 22:13:27,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-11 22:13:27,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-11 22:13:27,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-11 22:13:27,963 INFO L275 PluginConnector]: CDTParser initialized [2022-07-11 22:13:27,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max10-1.i [2022-07-11 22:13:28,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c18d3bf3/0838737804d84ac09b1ada119fe748fc/FLAGc6eaad909 [2022-07-11 22:13:28,387 INFO L306 CDTParser]: Found 1 translation units. [2022-07-11 22:13:28,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max10-1.i [2022-07-11 22:13:28,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c18d3bf3/0838737804d84ac09b1ada119fe748fc/FLAGc6eaad909 [2022-07-11 22:13:28,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c18d3bf3/0838737804d84ac09b1ada119fe748fc [2022-07-11 22:13:28,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-11 22:13:28,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-11 22:13:28,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-11 22:13:28,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-11 22:13:28,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-11 22:13:28,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1edf7d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28, skipping insertion in model container [2022-07-11 22:13:28,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-11 22:13:28,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-11 22:13:28,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max10-1.i[1290,1303] [2022-07-11 22:13:28,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 22:13:28,632 INFO L203 MainTranslator]: Completed pre-run [2022-07-11 22:13:28,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max10-1.i[1290,1303] [2022-07-11 22:13:28,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 22:13:28,685 INFO L208 MainTranslator]: Completed translation [2022-07-11 22:13:28,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28 WrapperNode [2022-07-11 22:13:28,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-11 22:13:28,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-11 22:13:28,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-11 22:13:28,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-11 22:13:28,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,728 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2022-07-11 22:13:28,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-11 22:13:28,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-11 22:13:28,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-11 22:13:28,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-11 22:13:28,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-11 22:13:28,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-11 22:13:28,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-11 22:13:28,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-11 22:13:28,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (1/1) ... [2022-07-11 22:13:28,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 22:13:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:28,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-11 22:13:28,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure max [2022-07-11 22:13:28,853 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-11 22:13:28,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-11 22:13:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-11 22:13:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-11 22:13:28,916 INFO L234 CfgBuilder]: Building ICFG [2022-07-11 22:13:28,917 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-11 22:13:29,070 INFO L275 CfgBuilder]: Performing block encoding [2022-07-11 22:13:29,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-11 22:13:29,077 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-11 22:13:29,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 10:13:29 BoogieIcfgContainer [2022-07-11 22:13:29,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-11 22:13:29,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-11 22:13:29,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-11 22:13:29,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-11 22:13:29,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 10:13:28" (1/3) ... [2022-07-11 22:13:29,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab7447c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 10:13:29, skipping insertion in model container [2022-07-11 22:13:29,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:13:28" (2/3) ... [2022-07-11 22:13:29,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab7447c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 10:13:29, skipping insertion in model container [2022-07-11 22:13:29,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 10:13:29" (3/3) ... [2022-07-11 22:13:29,085 INFO L111 eAbstractionObserver]: Analyzing ICFG max10-1.i [2022-07-11 22:13:29,096 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-11 22:13:29,097 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-11 22:13:29,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-11 22:13:29,138 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b63fa64, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3de822df [2022-07-11 22:13:29,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-11 22:13:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-11 22:13:29,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:29,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:29,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:29,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:29,153 INFO L85 PathProgramCache]: Analyzing trace with hash -528134526, now seen corresponding path program 1 times [2022-07-11 22:13:29,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:29,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957932076] [2022-07-11 22:13:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-11 22:13:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-11 22:13:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-11 22:13:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-11 22:13:29,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:29,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957932076] [2022-07-11 22:13:29,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957932076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:13:29,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 22:13:29,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 22:13:29,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507997589] [2022-07-11 22:13:29,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:13:29,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-11 22:13:29,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:29,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-11 22:13:29,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-11 22:13:29,387 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-11 22:13:29,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:29,399 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-07-11 22:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-11 22:13:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-07-11 22:13:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:29,404 INFO L225 Difference]: With dead ends: 52 [2022-07-11 22:13:29,405 INFO L226 Difference]: Without dead ends: 24 [2022-07-11 22:13:29,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-11 22:13:29,409 INFO L413 NwaCegarLoop]: 33 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, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:29,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-11 22:13:29,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-11 22:13:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:29,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-11 22:13:29,431 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 28 [2022-07-11 22:13:29,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:29,431 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-11 22:13:29,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-11 22:13:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-11 22:13:29,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-11 22:13:29,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:29,433 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:29,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-11 22:13:29,433 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:29,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash -321958693, now seen corresponding path program 1 times [2022-07-11 22:13:29,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:29,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627655423] [2022-07-11 22:13:29,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:29,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-11 22:13:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-11 22:13:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-11 22:13:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-11 22:13:29,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:29,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627655423] [2022-07-11 22:13:29,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627655423] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:29,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403532566] [2022-07-11 22:13:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:29,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:29,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:29,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-11 22:13:29,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-11 22:13:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 22:13:29,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-11 22:13:29,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:13:29,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403532566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:13:29,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 22:13:29,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-11 22:13:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668792782] [2022-07-11 22:13:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:13:29,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 22:13:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 22:13:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:13:29,625 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-11 22:13:29,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:29,643 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-07-11 22:13:29,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 22:13:29,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-07-11 22:13:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:29,645 INFO L225 Difference]: With dead ends: 46 [2022-07-11 22:13:29,645 INFO L226 Difference]: Without dead ends: 26 [2022-07-11 22:13:29,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:13:29,646 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:29,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:29,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-11 22:13:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-07-11 22:13:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-07-11 22:13:29,652 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 28 [2022-07-11 22:13:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:29,652 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-11 22:13:29,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-11 22:13:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-07-11 22:13:29,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-11 22:13:29,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:29,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:29,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-11 22:13:29,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:29,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:29,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1777476163, now seen corresponding path program 1 times [2022-07-11 22:13:29,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:29,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369222040] [2022-07-11 22:13:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:29,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-11 22:13:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-11 22:13:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-11 22:13:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-11 22:13:29,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:29,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369222040] [2022-07-11 22:13:29,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369222040] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:29,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512382049] [2022-07-11 22:13:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:29,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:29,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:29,936 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) [2022-07-11 22:13:29,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-11 22:13:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:29,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 22:13:30,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-11 22:13:30,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:13:30,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512382049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:13:30,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 22:13:30,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-11 22:13:30,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177455941] [2022-07-11 22:13:30,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:13:30,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 22:13:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:30,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 22:13:30,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:13:30,013 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:13:30,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:30,022 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2022-07-11 22:13:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 22:13:30,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-07-11 22:13:30,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:30,023 INFO L225 Difference]: With dead ends: 48 [2022-07-11 22:13:30,024 INFO L226 Difference]: Without dead ends: 29 [2022-07-11 22:13:30,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:13:30,025 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:30,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-11 22:13:30,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-07-11 22:13:30,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-07-11 22:13:30,031 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 30 [2022-07-11 22:13:30,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:30,031 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-07-11 22:13:30,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:13:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-07-11 22:13:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-11 22:13:30,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:30,034 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:30,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:30,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-11 22:13:30,236 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:30,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1540631384, now seen corresponding path program 1 times [2022-07-11 22:13:30,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:30,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916153729] [2022-07-11 22:13:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:30,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-11 22:13:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-11 22:13:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-11 22:13:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-11 22:13:30,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:30,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916153729] [2022-07-11 22:13:30,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916153729] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:30,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537127962] [2022-07-11 22:13:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:30,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:30,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:30,332 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) [2022-07-11 22:13:30,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-11 22:13:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 22:13:30,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-11 22:13:30,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:13:30,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537127962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:13:30,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 22:13:30,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-07-11 22:13:30,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549860619] [2022-07-11 22:13:30,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:13:30,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 22:13:30,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:30,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 22:13:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-11 22:13:30,402 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:13:30,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:30,410 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-07-11 22:13:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 22:13:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-07-11 22:13:30,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:30,411 INFO L225 Difference]: With dead ends: 43 [2022-07-11 22:13:30,411 INFO L226 Difference]: Without dead ends: 28 [2022-07-11 22:13:30,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-11 22:13:30,412 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:30,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-11 22:13:30,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-07-11 22:13:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-07-11 22:13:30,416 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 42 [2022-07-11 22:13:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:30,417 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-07-11 22:13:30,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:13:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-07-11 22:13:30,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-11 22:13:30,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:30,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:30,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:30,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:30,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:30,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:30,637 INFO L85 PathProgramCache]: Analyzing trace with hash -180199466, now seen corresponding path program 1 times [2022-07-11 22:13:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:30,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421237945] [2022-07-11 22:13:30,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:30,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-11 22:13:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-11 22:13:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-11 22:13:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-11 22:13:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:30,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421237945] [2022-07-11 22:13:30,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421237945] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:30,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616218156] [2022-07-11 22:13:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:30,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:30,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:30,722 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) [2022-07-11 22:13:30,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-11 22:13:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:30,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-11 22:13:30,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-11 22:13:30,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:13:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-11 22:13:30,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616218156] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:13:30,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:13:30,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-07-11 22:13:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784135634] [2022-07-11 22:13:30,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:13:30,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-11 22:13:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-11 22:13:30,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-11 22:13:30,864 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-11 22:13:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:30,898 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2022-07-11 22:13:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-11 22:13:30,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2022-07-11 22:13:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:30,899 INFO L225 Difference]: With dead ends: 62 [2022-07-11 22:13:30,899 INFO L226 Difference]: Without dead ends: 40 [2022-07-11 22:13:30,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-11 22:13:30,902 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:30,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 70 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:30,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-11 22:13:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-07-11 22:13:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-07-11 22:13:30,908 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 44 [2022-07-11 22:13:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:30,908 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-07-11 22:13:30,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-11 22:13:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-07-11 22:13:30,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-11 22:13:30,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:30,909 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:30,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:31,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:31,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:31,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1875433, now seen corresponding path program 2 times [2022-07-11 22:13:31,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:31,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012005814] [2022-07-11 22:13:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:31,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-11 22:13:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-11 22:13:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-11 22:13:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-07-11 22:13:31,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:31,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012005814] [2022-07-11 22:13:31,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012005814] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:31,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371088226] [2022-07-11 22:13:31,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-11 22:13:31,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:31,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:31,234 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) [2022-07-11 22:13:31,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-11 22:13:31,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-11 22:13:31,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:13:31,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-11 22:13:31,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-11 22:13:31,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:13:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-11 22:13:31,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371088226] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:13:31,405 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:13:31,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2022-07-11 22:13:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117063174] [2022-07-11 22:13:31,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:13:31,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-11 22:13:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-11 22:13:31,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-07-11 22:13:31,407 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-11 22:13:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:31,446 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2022-07-11 22:13:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-11 22:13:31,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-07-11 22:13:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:31,452 INFO L225 Difference]: With dead ends: 78 [2022-07-11 22:13:31,452 INFO L226 Difference]: Without dead ends: 52 [2022-07-11 22:13:31,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-07-11 22:13:31,453 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:31,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 93 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-11 22:13:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2022-07-11 22:13:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.108695652173913) internal successors, (51), 46 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-07-11 22:13:31,459 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 62 [2022-07-11 22:13:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:31,462 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-07-11 22:13:31,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-11 22:13:31,462 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-07-11 22:13:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-11 22:13:31,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:31,464 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:31,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:31,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:31,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1341943393, now seen corresponding path program 3 times [2022-07-11 22:13:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:31,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727285052] [2022-07-11 22:13:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:31,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-11 22:13:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-11 22:13:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-11 22:13:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-11 22:13:31,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:31,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727285052] [2022-07-11 22:13:31,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727285052] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:31,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985900774] [2022-07-11 22:13:31,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-11 22:13:31,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:31,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:31,780 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) [2022-07-11 22:13:31,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-11 22:13:31,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-11 22:13:31,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:13:31,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-11 22:13:31,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-11 22:13:31,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:13:31,920 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-07-11 22:13:31,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985900774] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:13:31,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:13:31,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-07-11 22:13:31,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884726038] [2022-07-11 22:13:31,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:13:31,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-11 22:13:31,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:31,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-11 22:13:31,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-11 22:13:31,922 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-11 22:13:31,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:31,967 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2022-07-11 22:13:31,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-11 22:13:31,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2022-07-11 22:13:31,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:31,970 INFO L225 Difference]: With dead ends: 94 [2022-07-11 22:13:31,970 INFO L226 Difference]: Without dead ends: 67 [2022-07-11 22:13:31,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-11 22:13:31,973 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 40 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:31,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 58 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:31,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-07-11 22:13:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-07-11 22:13:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 62 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:31,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2022-07-11 22:13:31,984 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 76 [2022-07-11 22:13:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:31,984 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2022-07-11 22:13:31,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-11 22:13:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2022-07-11 22:13:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-11 22:13:31,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:31,986 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 10, 10, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:32,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:32,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:32,186 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:32,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:32,187 INFO L85 PathProgramCache]: Analyzing trace with hash -28042803, now seen corresponding path program 4 times [2022-07-11 22:13:32,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:32,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191386244] [2022-07-11 22:13:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:32,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-11 22:13:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-11 22:13:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-11 22:13:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-11 22:13:32,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191386244] [2022-07-11 22:13:32,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191386244] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:32,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259476951] [2022-07-11 22:13:32,351 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-11 22:13:32,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:32,364 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) [2022-07-11 22:13:32,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-11 22:13:32,451 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-11 22:13:32,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:13:32,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-11 22:13:32,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 316 proven. 66 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-11 22:13:32,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:13:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-11 22:13:32,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259476951] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:13:32,567 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:13:32,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-11 22:13:32,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892326601] [2022-07-11 22:13:32,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:13:32,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-11 22:13:32,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:32,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-11 22:13:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-11 22:13:32,569 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-11 22:13:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:32,607 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2022-07-11 22:13:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-11 22:13:32,608 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 124 [2022-07-11 22:13:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:32,609 INFO L225 Difference]: With dead ends: 126 [2022-07-11 22:13:32,609 INFO L226 Difference]: Without dead ends: 83 [2022-07-11 22:13:32,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-11 22:13:32,610 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 62 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:32,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:32,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-11 22:13:32,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-07-11 22:13:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.1666666666666667) internal successors, (91), 78 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 97 transitions. [2022-07-11 22:13:32,622 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 97 transitions. Word has length 124 [2022-07-11 22:13:32,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:32,622 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 97 transitions. [2022-07-11 22:13:32,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-11 22:13:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 97 transitions. [2022-07-11 22:13:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-11 22:13:32,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:32,623 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:32,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:32,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:32,836 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:32,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:32,836 INFO L85 PathProgramCache]: Analyzing trace with hash -281100999, now seen corresponding path program 5 times [2022-07-11 22:13:32,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:32,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638020581] [2022-07-11 22:13:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:32,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-11 22:13:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-11 22:13:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-11 22:13:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-11 22:13:32,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:32,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638020581] [2022-07-11 22:13:32,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638020581] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:32,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672089540] [2022-07-11 22:13:32,929 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-11 22:13:32,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:32,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:32,930 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-11 22:13:32,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-11 22:13:33,151 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-07-11 22:13:33,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:13:33,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-11 22:13:33,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 850 proven. 4 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2022-07-11 22:13:33,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:13:33,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-11 22:13:33,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672089540] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:13:33,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:13:33,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-11 22:13:33,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147986861] [2022-07-11 22:13:33,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:13:33,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-11 22:13:33,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:33,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-11 22:13:33,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-11 22:13:33,198 INFO L87 Difference]: Start difference. First operand 83 states and 97 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-11 22:13:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:33,216 INFO L93 Difference]: Finished difference Result 142 states and 170 transitions. [2022-07-11 22:13:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-11 22:13:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 172 [2022-07-11 22:13:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:33,217 INFO L225 Difference]: With dead ends: 142 [2022-07-11 22:13:33,217 INFO L226 Difference]: Without dead ends: 91 [2022-07-11 22:13:33,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-11 22:13:33,218 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:33,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-11 22:13:33,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-07-11 22:13:33,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 86 states have (on average 1.1511627906976745) internal successors, (99), 86 states have internal predecessors, (99), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2022-07-11 22:13:33,223 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 172 [2022-07-11 22:13:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:33,223 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2022-07-11 22:13:33,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-11 22:13:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2022-07-11 22:13:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-11 22:13:33,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:33,225 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:33,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:33,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-11 22:13:33,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:33,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1450203185, now seen corresponding path program 6 times [2022-07-11 22:13:33,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:33,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839440706] [2022-07-11 22:13:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:33,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-11 22:13:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:33,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-11 22:13:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:33,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-11 22:13:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-11 22:13:33,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:33,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839440706] [2022-07-11 22:13:33,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839440706] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:33,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847924487] [2022-07-11 22:13:33,567 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-11 22:13:33,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:33,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:33,568 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-11 22:13:33,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-11 22:13:33,883 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-07-11 22:13:33,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:13:33,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-11 22:13:33,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 850 proven. 36 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2022-07-11 22:13:33,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:13:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2022-07-11 22:13:33,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847924487] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:13:33,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:13:33,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-11 22:13:33,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917744864] [2022-07-11 22:13:33,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:13:33,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-11 22:13:33,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:13:33,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-11 22:13:33,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-11 22:13:33,954 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-11 22:13:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:13:33,974 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2022-07-11 22:13:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-11 22:13:33,975 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 180 [2022-07-11 22:13:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:13:33,975 INFO L225 Difference]: With dead ends: 148 [2022-07-11 22:13:33,976 INFO L226 Difference]: Without dead ends: 97 [2022-07-11 22:13:33,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 362 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-11 22:13:33,976 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:13:33,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 99 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:13:33,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-07-11 22:13:33,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-07-11 22:13:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 92 states have (on average 1.141304347826087) internal successors, (105), 92 states have internal predecessors, (105), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:13:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2022-07-11 22:13:33,981 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 180 [2022-07-11 22:13:33,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:13:33,982 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2022-07-11 22:13:33,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-11 22:13:33,982 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2022-07-11 22:13:33,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-11 22:13:33,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:13:33,989 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 10, 10, 9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:13:34,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-11 22:13:34,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-11 22:13:34,189 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:13:34,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:13:34,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1435992661, now seen corresponding path program 7 times [2022-07-11 22:13:34,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:13:34,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531080517] [2022-07-11 22:13:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:13:34,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:13:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-11 22:13:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-11 22:13:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-11 22:13:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 38 proven. 1214 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2022-07-11 22:13:34,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:13:34,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531080517] [2022-07-11 22:13:34,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531080517] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:13:34,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318799408] [2022-07-11 22:13:34,746 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-11 22:13:34,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:13:34,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:13:34,780 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-11 22:13:34,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-11 22:13:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:13:34,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 167 conjunts are in the unsatisfiable core [2022-07-11 22:13:34,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:13:37,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:37,656 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:37,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 146 treesize of output 116 [2022-07-11 22:13:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:38,775 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:38,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 141 treesize of output 118 [2022-07-11 22:13:39,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,076 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:39,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 108 [2022-07-11 22:13:39,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,237 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:39,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 108 [2022-07-11 22:13:39,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:39,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,480 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:39,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 98 [2022-07-11 22:13:39,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:39,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,700 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:39,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 86 [2022-07-11 22:13:39,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:39,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:39,929 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:39,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 74 [2022-07-11 22:13:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,143 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:40,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 62 [2022-07-11 22:13:40,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:13:40,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,323 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:40,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 50 [2022-07-11 22:13:40,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,483 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:40,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 30 [2022-07-11 22:13:40,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:13:40,573 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:13:40,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2022-07-11 22:13:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 8 proven. 1827 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-07-11 22:13:42,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:14:49,124 INFO L356 Elim1Store]: treesize reduction 432, result has 0.2 percent of original size [2022-07-11 22:14:49,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 136 treesize of output 1 [2022-07-11 22:14:54,117 INFO L356 Elim1Store]: treesize reduction 698, result has 28.4 percent of original size [2022-07-11 22:14:54,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 183 treesize of output 304 [2022-07-11 22:14:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 588 proven. 1145 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-07-11 22:14:55,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318799408] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:14:55,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-11 22:14:55,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 83, 72] total 163 [2022-07-11 22:14:55,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839312636] [2022-07-11 22:14:55,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-11 22:14:55,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 163 states [2022-07-11 22:14:55,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:14:55,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2022-07-11 22:14:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1325, Invalid=25053, Unknown=28, NotChecked=0, Total=26406 [2022-07-11 22:14:55,781 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 163 states, 160 states have (on average 1.81875) internal successors, (291), 159 states have internal predecessors, (291), 8 states have call successors, (8), 3 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-11 22:17:07,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:17:07,958 INFO L93 Difference]: Finished difference Result 1020 states and 1297 transitions. [2022-07-11 22:17:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 631 states. [2022-07-11 22:17:07,959 INFO L78 Accepts]: Start accepts. Automaton has has 163 states, 160 states have (on average 1.81875) internal successors, (291), 159 states have internal predecessors, (291), 8 states have call successors, (8), 3 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 8 states have call successors, (9) Word has length 186 [2022-07-11 22:17:07,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:17:07,965 INFO L225 Difference]: With dead ends: 1020 [2022-07-11 22:17:07,965 INFO L226 Difference]: Without dead ends: 902 [2022-07-11 22:17:08,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 982 GetRequests, 281 SyntacticMatches, 3 SemanticMatches, 698 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186342 ImplicationChecksByTransitivity, 201.7s TimeCoverageRelationStatistics Valid=17407, Invalid=471851, Unknown=42, NotChecked=0, Total=489300 [2022-07-11 22:17:08,016 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1370 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 6020 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 29094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 6020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22465 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-11 22:17:08,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 2510 Invalid, 29094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 6020 Invalid, 0 Unknown, 22465 Unchecked, 4.2s Time] [2022-07-11 22:17:08,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-07-11 22:17:08,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 644. [2022-07-11 22:17:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 621 states have (on average 1.2254428341384862) internal successors, (761), 630 states have internal predecessors, (761), 10 states have call successors, (10), 3 states have call predecessors, (10), 12 states have return successors, (73), 10 states have call predecessors, (73), 10 states have call successors, (73) [2022-07-11 22:17:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 844 transitions. [2022-07-11 22:17:08,076 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 844 transitions. Word has length 186 [2022-07-11 22:17:08,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:17:08,076 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 844 transitions. [2022-07-11 22:17:08,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 163 states, 160 states have (on average 1.81875) internal successors, (291), 159 states have internal predecessors, (291), 8 states have call successors, (8), 3 states have call predecessors, (8), 7 states have return successors, (9), 6 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-11 22:17:08,077 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 844 transitions. [2022-07-11 22:17:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-11 22:17:08,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:17:08,085 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 28, 10, 10, 9, 9, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:17:08,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-11 22:17:08,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-11 22:17:08,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:17:08,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:17:08,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1427363051, now seen corresponding path program 1 times [2022-07-11 22:17:08,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:17:08,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601820595] [2022-07-11 22:17:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:17:08,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:17:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:17:10,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-11 22:17:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:17:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-11 22:17:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:17:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-11 22:17:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:17:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 33 proven. 1946 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-11 22:17:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:17:14,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601820595] [2022-07-11 22:17:14,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601820595] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:17:14,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761892787] [2022-07-11 22:17:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:17:14,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:17:14,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:17:14,831 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-11 22:17:14,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-11 22:17:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:17:14,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 282 conjunts are in the unsatisfiable core [2022-07-11 22:17:14,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:17:15,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-11 22:17:22,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:22,450 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:22,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 186 treesize of output 130 [2022-07-11 22:17:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:35,358 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:35,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 172 treesize of output 131 [2022-07-11 22:17:36,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,043 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:36,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 121 [2022-07-11 22:17:36,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:36,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:36,417 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:36,417 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 121 [2022-07-11 22:17:37,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:37,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,044 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:37,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 146 treesize of output 109 [2022-07-11 22:17:37,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:37,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:37,738 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:37,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 131 treesize of output 97 [2022-07-11 22:17:38,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:38,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:38,413 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:38,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 85 [2022-07-11 22:17:39,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,065 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:39,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 73 [2022-07-11 22:17:39,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:17:39,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:39,718 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:39,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 61 [2022-07-11 22:17:40,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:40,290 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:40,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 38 [2022-07-11 22:17:40,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:17:40,593 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:40,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 38 [2022-07-11 22:17:44,191 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-11 22:17:44,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 57 [2022-07-11 22:17:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 1 proven. 2022 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-11 22:17:45,009 INFO L328 TraceCheckSpWp]: Computing backward predicates...