./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label59.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/eca-rers2012/Problem10_label59.c -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 c3365f1635b74f6a53afd889ed9f5ab40e7b8a98b6d57619b7925d1a2f204728 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 23:39:26,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 23:39:26,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 23:39:26,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 23:39:26,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 23:39:26,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 23:39:26,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 23:39:26,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 23:39:26,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 23:39:26,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 23:39:26,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 23:39:26,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 23:39:26,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 23:39:26,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 23:39:26,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 23:39:26,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 23:39:26,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 23:39:26,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 23:39:26,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 23:39:26,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 23:39:26,664 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 23:39:26,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 23:39:26,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 23:39:26,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 23:39:26,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 23:39:26,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 23:39:26,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 23:39:26,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 23:39:26,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 23:39:26,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 23:39:26,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 23:39:26,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 23:39:26,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 23:39:26,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 23:39:26,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 23:39:26,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 23:39:26,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 23:39:26,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 23:39:26,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 23:39:26,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 23:39:26,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 23:39:26,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 23:39:26,688 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 23:39:26,713 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 23:39:26,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 23:39:26,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 23:39:26,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 23:39:26,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 23:39:26,715 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 23:39:26,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 23:39:26,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 23:39:26,716 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 23:39:26,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 23:39:26,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 23:39:26,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 23:39:26,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 23:39:26,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 23:39:26,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 23:39:26,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 23:39:26,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 23:39:26,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 23:39:26,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 23:39:26,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 23:39:26,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 23:39:26,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 23:39:26,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 23:39:26,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 23:39:26,727 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 23:39:26,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 23:39:26,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 23:39:26,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3365f1635b74f6a53afd889ed9f5ab40e7b8a98b6d57619b7925d1a2f204728 [2022-07-20 23:39:27,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 23:39:27,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 23:39:27,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 23:39:27,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 23:39:27,047 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 23:39:27,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label59.c [2022-07-20 23:39:27,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec8e3012/3a721463d1bf4d71b62a96ae086997e9/FLAG92a6a6d7f [2022-07-20 23:39:27,536 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 23:39:27,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label59.c [2022-07-20 23:39:27,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec8e3012/3a721463d1bf4d71b62a96ae086997e9/FLAG92a6a6d7f [2022-07-20 23:39:27,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec8e3012/3a721463d1bf4d71b62a96ae086997e9 [2022-07-20 23:39:27,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 23:39:27,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 23:39:27,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 23:39:27,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 23:39:27,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 23:39:27,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:39:27" (1/1) ... [2022-07-20 23:39:27,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295b1060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:27, skipping insertion in model container [2022-07-20 23:39:27,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:39:27" (1/1) ... [2022-07-20 23:39:27,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 23:39:27,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 23:39:28,022 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/eca-rers2012/Problem10_label59.c[7385,7398] [2022-07-20 23:39:28,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 23:39:28,148 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 23:39:28,171 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/eca-rers2012/Problem10_label59.c[7385,7398] [2022-07-20 23:39:28,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 23:39:28,238 INFO L208 MainTranslator]: Completed translation [2022-07-20 23:39:28,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28 WrapperNode [2022-07-20 23:39:28,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 23:39:28,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 23:39:28,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 23:39:28,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 23:39:28,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,318 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2022-07-20 23:39:28,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 23:39:28,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 23:39:28,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 23:39:28,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 23:39:28,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 23:39:28,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 23:39:28,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 23:39:28,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 23:39:28,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (1/1) ... [2022-07-20 23:39:28,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 23:39:28,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:39:28,414 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) [2022-07-20 23:39:28,433 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 [2022-07-20 23:39:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 23:39:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 23:39:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 23:39:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 23:39:28,497 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 23:39:28,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 23:39:29,451 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 23:39:29,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 23:39:29,461 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 23:39:29,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:29 BoogieIcfgContainer [2022-07-20 23:39:29,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 23:39:29,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 23:39:29,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 23:39:29,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 23:39:29,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:39:27" (1/3) ... [2022-07-20 23:39:29,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41de0d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:39:29, skipping insertion in model container [2022-07-20 23:39:29,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:39:28" (2/3) ... [2022-07-20 23:39:29,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41de0d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:39:29, skipping insertion in model container [2022-07-20 23:39:29,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:29" (3/3) ... [2022-07-20 23:39:29,470 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label59.c [2022-07-20 23:39:29,479 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 23:39:29,480 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 23:39:29,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 23:39:29,538 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@2880d4ce, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77726e89 [2022-07-20 23:39:29,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 23:39:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-20 23:39:29,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:29,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:29,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:29,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2022-07-20 23:39:29,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:29,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20009243] [2022-07-20 23:39:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:29,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:29,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20009243] [2022-07-20 23:39:29,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20009243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:29,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:29,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 23:39:29,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720229825] [2022-07-20 23:39:29,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:29,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:29,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:29,872 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:30,409 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2022-07-20 23:39:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:30,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-20 23:39:30,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:30,420 INFO L225 Difference]: With dead ends: 567 [2022-07-20 23:39:30,420 INFO L226 Difference]: Without dead ends: 282 [2022-07-20 23:39:30,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:30,425 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 135 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:30,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 32 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:39:30,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-07-20 23:39:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-07-20 23:39:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 281 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-07-20 23:39:30,471 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 65 [2022-07-20 23:39:30,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:30,472 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-07-20 23:39:30,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:30,472 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-07-20 23:39:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-20 23:39:30,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:30,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:30,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 23:39:30,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2138327860, now seen corresponding path program 1 times [2022-07-20 23:39:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:30,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212179722] [2022-07-20 23:39:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:30,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:30,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212179722] [2022-07-20 23:39:30,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212179722] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:30,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:30,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:39:30,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912596870] [2022-07-20 23:39:30,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:30,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:30,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:30,665 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:31,040 INFO L93 Difference]: Finished difference Result 840 states and 1291 transitions. [2022-07-20 23:39:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:31,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-07-20 23:39:31,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:31,043 INFO L225 Difference]: With dead ends: 840 [2022-07-20 23:39:31,043 INFO L226 Difference]: Without dead ends: 560 [2022-07-20 23:39:31,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:31,045 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 77 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:31,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 226 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:31,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-07-20 23:39:31,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2022-07-20 23:39:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3059033989266546) internal successors, (730), 559 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2022-07-20 23:39:31,081 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 131 [2022-07-20 23:39:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:31,082 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2022-07-20 23:39:31,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2022-07-20 23:39:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-20 23:39:31,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:31,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:31,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 23:39:31,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:31,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash -675083717, now seen corresponding path program 1 times [2022-07-20 23:39:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:31,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942622123] [2022-07-20 23:39:31,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:31,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:31,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:31,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942622123] [2022-07-20 23:39:31,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942622123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:31,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:31,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 23:39:31,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315586209] [2022-07-20 23:39:31,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:31,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:31,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:31,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:31,199 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:31,551 INFO L93 Difference]: Finished difference Result 1257 states and 1672 transitions. [2022-07-20 23:39:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:31,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-07-20 23:39:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:31,554 INFO L225 Difference]: With dead ends: 1257 [2022-07-20 23:39:31,554 INFO L226 Difference]: Without dead ends: 699 [2022-07-20 23:39:31,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:31,556 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:31,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 52 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-20 23:39:31,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2022-07-20 23:39:31,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2951289398280803) internal successors, (904), 698 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 904 transitions. [2022-07-20 23:39:31,567 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 904 transitions. Word has length 138 [2022-07-20 23:39:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:31,567 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 904 transitions. [2022-07-20 23:39:31,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 904 transitions. [2022-07-20 23:39:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-20 23:39:31,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:31,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:31,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 23:39:31,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:31,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:31,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1097584517, now seen corresponding path program 1 times [2022-07-20 23:39:31,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:31,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843342596] [2022-07-20 23:39:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:31,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:31,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:31,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843342596] [2022-07-20 23:39:31,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843342596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:31,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:31,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 23:39:31,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237474104] [2022-07-20 23:39:31,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:31,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:31,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:31,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:31,618 INFO L87 Difference]: Start difference. First operand 699 states and 904 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:31,970 INFO L93 Difference]: Finished difference Result 1674 states and 2235 transitions. [2022-07-20 23:39:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:31,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-20 23:39:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:31,973 INFO L225 Difference]: With dead ends: 1674 [2022-07-20 23:39:31,973 INFO L226 Difference]: Without dead ends: 977 [2022-07-20 23:39:31,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:31,975 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 70 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:31,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 75 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-07-20 23:39:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2022-07-20 23:39:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2274590163934427) internal successors, (1198), 976 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions. [2022-07-20 23:39:31,990 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 142 [2022-07-20 23:39:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:31,990 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions. [2022-07-20 23:39:31,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions. [2022-07-20 23:39:31,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-20 23:39:31,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:31,992 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:31,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 23:39:31,992 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:31,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:31,993 INFO L85 PathProgramCache]: Analyzing trace with hash -466379074, now seen corresponding path program 1 times [2022-07-20 23:39:31,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:31,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298157143] [2022-07-20 23:39:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:31,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:32,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:32,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298157143] [2022-07-20 23:39:32,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298157143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:32,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:32,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:39:32,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033236169] [2022-07-20 23:39:32,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:32,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 23:39:32,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:32,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 23:39:32,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:39:32,082 INFO L87 Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:32,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:32,464 INFO L93 Difference]: Finished difference Result 1833 states and 2265 transitions. [2022-07-20 23:39:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 23:39:32,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2022-07-20 23:39:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:32,467 INFO L225 Difference]: With dead ends: 1833 [2022-07-20 23:39:32,467 INFO L226 Difference]: Without dead ends: 997 [2022-07-20 23:39:32,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 23:39:32,469 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 130 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:32,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 96 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:39:32,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2022-07-20 23:39:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 977. [2022-07-20 23:39:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2223360655737705) internal successors, (1193), 976 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:32,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1193 transitions. [2022-07-20 23:39:32,483 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1193 transitions. Word has length 152 [2022-07-20 23:39:32,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:32,483 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1193 transitions. [2022-07-20 23:39:32,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:32,484 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1193 transitions. [2022-07-20 23:39:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-20 23:39:32,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:32,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:32,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 23:39:32,486 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:32,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:32,487 INFO L85 PathProgramCache]: Analyzing trace with hash -354141657, now seen corresponding path program 1 times [2022-07-20 23:39:32,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:32,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658589111] [2022-07-20 23:39:32,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:32,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:32,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:32,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658589111] [2022-07-20 23:39:32,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658589111] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:39:32,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873901829] [2022-07-20 23:39:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:32,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:39:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:39:32,588 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) [2022-07-20 23:39:32,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 23:39:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:32,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 23:39:32,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:39:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 127 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:32,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 23:39:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 127 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:33,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873901829] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 23:39:33,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 23:39:33,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-07-20 23:39:33,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417705433] [2022-07-20 23:39:33,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 23:39:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 23:39:33,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 23:39:33,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-20 23:39:33,187 INFO L87 Difference]: Start difference. First operand 977 states and 1193 transitions. Second operand has 9 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:35,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:35,423 INFO L93 Difference]: Finished difference Result 4037 states and 5311 transitions. [2022-07-20 23:39:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-20 23:39:35,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2022-07-20 23:39:35,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:35,432 INFO L225 Difference]: With dead ends: 4037 [2022-07-20 23:39:35,432 INFO L226 Difference]: Without dead ends: 3201 [2022-07-20 23:39:35,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-07-20 23:39:35,439 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1120 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:35,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 49 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-20 23:39:35,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2022-07-20 23:39:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 2089. [2022-07-20 23:39:35,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 1.26772030651341) internal successors, (2647), 2088 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2647 transitions. [2022-07-20 23:39:35,472 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2647 transitions. Word has length 213 [2022-07-20 23:39:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:35,472 INFO L495 AbstractCegarLoop]: Abstraction has 2089 states and 2647 transitions. [2022-07-20 23:39:35,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 63.44444444444444) internal successors, (571), 9 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:35,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2647 transitions. [2022-07-20 23:39:35,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-20 23:39:35,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:35,475 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:35,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 23:39:35,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-20 23:39:35,695 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1412343006, now seen corresponding path program 1 times [2022-07-20 23:39:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:35,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178991238] [2022-07-20 23:39:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:35,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 23:39:35,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:35,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178991238] [2022-07-20 23:39:35,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178991238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:35,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:35,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 23:39:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570997222] [2022-07-20 23:39:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:35,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 23:39:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 23:39:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-20 23:39:35,873 INFO L87 Difference]: Start difference. First operand 2089 states and 2647 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:36,193 INFO L93 Difference]: Finished difference Result 4092 states and 5203 transitions. [2022-07-20 23:39:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 23:39:36,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2022-07-20 23:39:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:36,198 INFO L225 Difference]: With dead ends: 4092 [2022-07-20 23:39:36,198 INFO L226 Difference]: Without dead ends: 2089 [2022-07-20 23:39:36,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-20 23:39:36,204 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 201 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:36,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 23 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-07-20 23:39:36,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2022-07-20 23:39:36,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 1.2634099616858236) internal successors, (2638), 2088 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:36,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2638 transitions. [2022-07-20 23:39:36,234 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2638 transitions. Word has length 217 [2022-07-20 23:39:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:36,235 INFO L495 AbstractCegarLoop]: Abstraction has 2089 states and 2638 transitions. [2022-07-20 23:39:36,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2638 transitions. [2022-07-20 23:39:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 23:39:36,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:36,239 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:36,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 23:39:36,239 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1299344947, now seen corresponding path program 1 times [2022-07-20 23:39:36,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:36,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286372980] [2022-07-20 23:39:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:36,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 63 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:36,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:36,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286372980] [2022-07-20 23:39:36,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286372980] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:39:36,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103610166] [2022-07-20 23:39:36,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:36,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:39:36,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:39:36,402 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) [2022-07-20 23:39:36,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 23:39:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:36,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:39:36,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:39:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-07-20 23:39:36,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:39:36,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103610166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:36,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:39:36,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-20 23:39:36,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972471667] [2022-07-20 23:39:36,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:36,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:36,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:36,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:36,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:39:36,550 INFO L87 Difference]: Start difference. First operand 2089 states and 2638 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:36,921 INFO L93 Difference]: Finished difference Result 4037 states and 5131 transitions. [2022-07-20 23:39:36,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:36,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-07-20 23:39:36,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:36,928 INFO L225 Difference]: With dead ends: 4037 [2022-07-20 23:39:36,928 INFO L226 Difference]: Without dead ends: 2089 [2022-07-20 23:39:36,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:39:36,930 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 77 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:36,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 225 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-07-20 23:39:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2022-07-20 23:39:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 1.1992337164750957) internal successors, (2504), 2088 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:36,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2504 transitions. [2022-07-20 23:39:36,962 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2504 transitions. Word has length 259 [2022-07-20 23:39:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:36,962 INFO L495 AbstractCegarLoop]: Abstraction has 2089 states and 2504 transitions. [2022-07-20 23:39:36,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:36,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2504 transitions. [2022-07-20 23:39:36,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-20 23:39:36,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:36,965 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:36,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 23:39:37,182 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,SelfDestructingSolverStorable7 [2022-07-20 23:39:37,182 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:37,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:37,183 INFO L85 PathProgramCache]: Analyzing trace with hash -883397783, now seen corresponding path program 1 times [2022-07-20 23:39:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:37,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325379395] [2022-07-20 23:39:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:37,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:37,307 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 125 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:39:37,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:37,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325379395] [2022-07-20 23:39:37,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325379395] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:39:37,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481351303] [2022-07-20 23:39:37,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:37,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:39:37,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:39:37,309 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) [2022-07-20 23:39:37,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 23:39:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:37,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:39:37,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:39:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-20 23:39:37,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:39:37,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481351303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:37,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:39:37,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-20 23:39:37,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491514258] [2022-07-20 23:39:37,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:37,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:37,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:37,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:39:37,552 INFO L87 Difference]: Start difference. First operand 2089 states and 2504 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:37,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:37,889 INFO L93 Difference]: Finished difference Result 4732 states and 5731 transitions. [2022-07-20 23:39:37,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:37,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-07-20 23:39:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:37,895 INFO L225 Difference]: With dead ends: 4732 [2022-07-20 23:39:37,895 INFO L226 Difference]: Without dead ends: 2784 [2022-07-20 23:39:37,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:39:37,899 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:37,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 35 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:37,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-07-20 23:39:37,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2784. [2022-07-20 23:39:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.1595400646784046) internal successors, (3227), 2783 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:37,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3227 transitions. [2022-07-20 23:39:37,936 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3227 transitions. Word has length 266 [2022-07-20 23:39:37,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:37,937 INFO L495 AbstractCegarLoop]: Abstraction has 2784 states and 3227 transitions. [2022-07-20 23:39:37,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3227 transitions. [2022-07-20 23:39:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-07-20 23:39:37,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:37,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:37,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-20 23:39:38,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:39:38,172 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:38,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:38,172 INFO L85 PathProgramCache]: Analyzing trace with hash -574209587, now seen corresponding path program 1 times [2022-07-20 23:39:38,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:38,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135663447] [2022-07-20 23:39:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:38,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-20 23:39:38,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:38,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135663447] [2022-07-20 23:39:38,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135663447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:38,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:38,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:39:38,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977431043] [2022-07-20 23:39:38,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:38,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:38,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:38,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:38,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:38,275 INFO L87 Difference]: Start difference. First operand 2784 states and 3227 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:38,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:38,602 INFO L93 Difference]: Finished difference Result 5427 states and 6309 transitions. [2022-07-20 23:39:38,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:38,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2022-07-20 23:39:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:38,609 INFO L225 Difference]: With dead ends: 5427 [2022-07-20 23:39:38,610 INFO L226 Difference]: Without dead ends: 2784 [2022-07-20 23:39:38,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:38,612 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 83 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:38,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 200 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:38,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-07-20 23:39:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2506. [2022-07-20 23:39:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2505 states have (on average 1.1261477045908184) internal successors, (2821), 2505 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:38,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 2821 transitions. [2022-07-20 23:39:38,650 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 2821 transitions. Word has length 275 [2022-07-20 23:39:38,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:38,651 INFO L495 AbstractCegarLoop]: Abstraction has 2506 states and 2821 transitions. [2022-07-20 23:39:38,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 2821 transitions. [2022-07-20 23:39:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-20 23:39:38,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:38,654 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:38,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 23:39:38,655 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:38,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1001154550, now seen corresponding path program 1 times [2022-07-20 23:39:38,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:38,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733050222] [2022-07-20 23:39:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-20 23:39:38,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:38,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733050222] [2022-07-20 23:39:38,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733050222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:38,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:38,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:39:38,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426544299] [2022-07-20 23:39:38,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:38,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:39:38,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:39:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:38,752 INFO L87 Difference]: Start difference. First operand 2506 states and 2821 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:39,067 INFO L93 Difference]: Finished difference Result 4871 states and 5497 transitions. [2022-07-20 23:39:39,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:39:39,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2022-07-20 23:39:39,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:39,073 INFO L225 Difference]: With dead ends: 4871 [2022-07-20 23:39:39,073 INFO L226 Difference]: Without dead ends: 2506 [2022-07-20 23:39:39,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:39:39,075 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 99 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:39,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 159 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 23:39:39,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2022-07-20 23:39:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2367. [2022-07-20 23:39:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2366 states have (on average 1.1132713440405748) internal successors, (2634), 2366 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2634 transitions. [2022-07-20 23:39:39,103 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2634 transitions. Word has length 281 [2022-07-20 23:39:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:39,103 INFO L495 AbstractCegarLoop]: Abstraction has 2367 states and 2634 transitions. [2022-07-20 23:39:39,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2634 transitions. [2022-07-20 23:39:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-20 23:39:39,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:39,108 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:39,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 23:39:39,108 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash 352328165, now seen corresponding path program 1 times [2022-07-20 23:39:39,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:39,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613060385] [2022-07-20 23:39:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:39,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-20 23:39:39,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:39,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613060385] [2022-07-20 23:39:39,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613060385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:39,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:39,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 23:39:39,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666332996] [2022-07-20 23:39:39,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:39,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 23:39:39,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:39,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 23:39:39,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:39:39,279 INFO L87 Difference]: Start difference. First operand 2367 states and 2634 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:40,058 INFO L93 Difference]: Finished difference Result 5010 states and 5565 transitions. [2022-07-20 23:39:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 23:39:40,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2022-07-20 23:39:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:40,066 INFO L225 Difference]: With dead ends: 5010 [2022-07-20 23:39:40,066 INFO L226 Difference]: Without dead ends: 2784 [2022-07-20 23:39:40,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:39:40,069 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 159 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:40,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 17 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 23:39:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-07-20 23:39:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2228. [2022-07-20 23:39:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 1.1001347103726986) internal successors, (2450), 2227 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:40,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2450 transitions. [2022-07-20 23:39:40,096 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2450 transitions. Word has length 363 [2022-07-20 23:39:40,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:40,096 INFO L495 AbstractCegarLoop]: Abstraction has 2228 states and 2450 transitions. [2022-07-20 23:39:40,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:40,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2450 transitions. [2022-07-20 23:39:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-20 23:39:40,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:39:40,101 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:40,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 23:39:40,101 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:39:40,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:39:40,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1789996429, now seen corresponding path program 1 times [2022-07-20 23:39:40,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:39:40,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749042687] [2022-07-20 23:39:40,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:39:40,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:39:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:39:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-20 23:39:40,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:39:40,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749042687] [2022-07-20 23:39:40,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749042687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:39:40,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:39:40,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 23:39:40,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112049041] [2022-07-20 23:39:40,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:39:40,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 23:39:40,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:39:40,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 23:39:40,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-20 23:39:40,290 INFO L87 Difference]: Start difference. First operand 2228 states and 2450 transitions. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 6 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:39:40,804 INFO L93 Difference]: Finished difference Result 4231 states and 4662 transitions. [2022-07-20 23:39:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 23:39:40,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 6 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 379 [2022-07-20 23:39:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:39:40,806 INFO L225 Difference]: With dead ends: 4231 [2022-07-20 23:39:40,806 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 23:39:40,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-20 23:39:40,809 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 147 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:39:40,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 19 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:39:40,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 23:39:40,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 23:39:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 23:39:40,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 379 [2022-07-20 23:39:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:39:40,811 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 23:39:40,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 6 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:39:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 23:39:40,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 23:39:40,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 23:39:40,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 23:39:40,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 23:39:41,358 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-07-20 23:39:41,358 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2022-07-20 23:39:41,358 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2022-07-20 23:39:41,358 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2022-07-20 23:39:41,358 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2022-07-20 23:39:41,359 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2022-07-20 23:39:41,359 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,359 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-20 23:39:41,360 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-20 23:39:41,361 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-20 23:39:41,361 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-20 23:39:41,361 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2022-07-20 23:39:41,362 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,363 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-20 23:39:41,364 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2022-07-20 23:39:41,365 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2022-07-20 23:39:41,365 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2022-07-20 23:39:41,365 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,365 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,365 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-20 23:39:41,366 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2022-07-20 23:39:41,367 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2022-07-20 23:39:41,368 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,368 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,368 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,368 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,368 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,368 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-20 23:39:41,369 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-20 23:39:41,370 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-20 23:39:41,370 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2022-07-20 23:39:41,370 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2022-07-20 23:39:41,370 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2022-07-20 23:39:41,370 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,370 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-20 23:39:41,371 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,372 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-20 23:39:41,373 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L895 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0)) (.cse3 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0)) (.cse4 (<= 0 (+ 600000 ~a1~0)))) (or (and .cse0 .cse1 .cse2 (< 0 (+ ~a1~0 13))) (and .cse3 .cse1 .cse2 (not .cse0) .cse4) (and .cse1 .cse2 .cse4 (<= ~a10~0 2) (<= 10 ~a19~0)) (and .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse1 .cse2 (= ~a19~0 6) .cse4))) [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,374 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,375 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,376 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,376 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,376 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2022-07-20 23:39:41,376 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2022-07-20 23:39:41,376 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L902 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2022-07-20 23:39:41,377 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-20 23:39:41,378 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,379 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-20 23:39:41,380 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0)) (.cse3 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0)) (.cse4 (<= 0 (+ 600000 ~a1~0)))) (or (and .cse0 .cse1 .cse2 (< 0 (+ ~a1~0 13))) (and .cse3 .cse1 .cse2 (not .cse0) .cse4) (and .cse1 .cse2 .cse4 (<= ~a10~0 2) (<= 10 ~a19~0)) (and .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse1 .cse2 (= ~a19~0 6) .cse4))) [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2022-07-20 23:39:41,381 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2022-07-20 23:39:41,382 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 209) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2022-07-20 23:39:41,383 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2022-07-20 23:39:41,384 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-20 23:39:41,385 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-20 23:39:41,388 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:39:41,389 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 23:39:41,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:39:41 BoogieIcfgContainer [2022-07-20 23:39:41,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 23:39:41,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 23:39:41,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 23:39:41,418 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 23:39:41,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:39:29" (3/4) ... [2022-07-20 23:39:41,420 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 23:39:41,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-20 23:39:41,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 23:39:41,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-20 23:39:41,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 23:39:41,513 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 23:39:41,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 23:39:41,514 INFO L158 Benchmark]: Toolchain (without parser) took 13662.58ms. Allocated memory was 54.5MB in the beginning and 237.0MB in the end (delta: 182.5MB). Free memory was 37.1MB in the beginning and 155.7MB in the end (delta: -118.5MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,514 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 44.0MB. Free memory was 26.0MB in the beginning and 26.0MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 23:39:41,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.30ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 34.6MB in the end (delta: 2.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.71ms. Allocated memory is still 54.5MB. Free memory was 34.4MB in the beginning and 26.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,515 INFO L158 Benchmark]: Boogie Preprocessor took 61.20ms. Allocated memory is still 54.5MB. Free memory was 26.5MB in the beginning and 29.9MB in the end (delta: -3.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,516 INFO L158 Benchmark]: RCFGBuilder took 1081.71ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 29.7MB in the beginning and 45.6MB in the end (delta: -15.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,516 INFO L158 Benchmark]: TraceAbstraction took 11952.14ms. Allocated memory was 81.8MB in the beginning and 237.0MB in the end (delta: 155.2MB). Free memory was 45.1MB in the beginning and 165.1MB in the end (delta: -120.0MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,516 INFO L158 Benchmark]: Witness Printer took 96.16ms. Allocated memory is still 237.0MB. Free memory was 165.1MB in the beginning and 155.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-20 23:39:41,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 44.0MB. Free memory was 26.0MB in the beginning and 26.0MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.30ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 34.6MB in the end (delta: 2.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.71ms. Allocated memory is still 54.5MB. Free memory was 34.4MB in the beginning and 26.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.20ms. Allocated memory is still 54.5MB. Free memory was 26.5MB in the beginning and 29.9MB in the end (delta: -3.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1081.71ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 29.7MB in the beginning and 45.6MB in the end (delta: -15.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11952.14ms. Allocated memory was 81.8MB in the beginning and 237.0MB in the end (delta: 155.2MB). Free memory was 45.1MB in the beginning and 165.1MB in the end (delta: -120.0MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB. * Witness Printer took 96.16ms. Allocated memory is still 237.0MB. Free memory was 165.1MB in the beginning and 155.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 209]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2431 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2431 mSDsluCounter, 1208 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 122 mSDsCounter, 1485 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7787 IncrementalHoareTripleChecker+Invalid, 9272 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1485 mSolverCounterUnsat, 1086 mSDtfsCounter, 7787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1013 GetRequests, 970 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2784occurred in iteration=9, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 2105 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 866 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1366 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3619 NumberOfCodeBlocks, 3619 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3815 ConstructedInterpolants, 0 QuantifiedInterpolants, 19245 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1068 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 2779/3203 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((a10 == 0 && 14 == a4) && a12 == 0) && 0 < a1 + 13) || ((((a19 <= 9 && 14 == a4) && a12 == 0) && !(a10 == 0)) && 0 <= 600000 + a1)) || ((((14 == a4 && a12 == 0) && 0 <= 600000 + a1) && a10 <= 2) && 10 <= a19)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || (((14 == a4 && a12 == 0) && a19 == 6) && 0 <= 600000 + a1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a10 == 0 && 14 == a4) && a12 == 0) && 0 < a1 + 13) || ((((a19 <= 9 && 14 == a4) && a12 == 0) && !(a10 == 0)) && 0 <= 600000 + a1)) || ((((14 == a4 && a12 == 0) && 0 <= 600000 + a1) && a10 <= 2) && 10 <= a19)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0)) || (((14 == a4 && a12 == 0) && a19 == 6) && 0 <= 600000 + a1) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-20 23:39:41,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE