./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/Problem02_label19.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 eadd63632d128e63354140f48e358b613932fbd540e74b83f7baa2b6412d6e8f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:04:35,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:04:35,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:04:35,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:04:35,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:04:35,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:04:35,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:04:35,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:04:35,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:04:35,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:04:35,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:04:35,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:04:35,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:04:35,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:04:35,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:04:35,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:04:35,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:04:35,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:04:35,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:04:35,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:04:35,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:04:35,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:04:35,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:04:35,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:04:35,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:04:35,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:04:35,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:04:35,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:04:35,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:04:35,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:04:35,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:04:35,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:04:35,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:04:35,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:04:35,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:04:35,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:04:35,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:04:35,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:04:35,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:04:35,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:04:35,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:04:35,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:04:35,944 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:04:35,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:04:35,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:04:35,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:04:35,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:04:35,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:04:35,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:04:35,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:04:35,954 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:04:35,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:04:35,955 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:04:35,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:04:35,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:04:35,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:04:35,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:04:35,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:04:35,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:04:35,957 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:04:35,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:04:35,963 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:04:35,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:04:35,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:04:35,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:04:35,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:04:35,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:04:35,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:04:35,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:04:35,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:04:35,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:04:35,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:04:35,965 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:04:35,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:04:35,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:04:35,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:04:35,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eadd63632d128e63354140f48e358b613932fbd540e74b83f7baa2b6412d6e8f [2021-12-15 22:04:36,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:04:36,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:04:36,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:04:36,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:04:36,362 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:04:36,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label19.c [2021-12-15 22:04:36,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d98f438/34b5c404b2e6445883d3b225aa21f758/FLAG8bb365679 [2021-12-15 22:04:36,864 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:04:36,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label19.c [2021-12-15 22:04:36,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d98f438/34b5c404b2e6445883d3b225aa21f758/FLAG8bb365679 [2021-12-15 22:04:37,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d98f438/34b5c404b2e6445883d3b225aa21f758 [2021-12-15 22:04:37,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:04:37,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:04:37,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:04:37,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:04:37,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:04:37,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c54aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37, skipping insertion in model container [2021-12-15 22:04:37,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:04:37,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:04:37,555 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/Problem02_label19.c[15877,15890] [2021-12-15 22:04:37,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:04:37,593 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:04:37,641 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/Problem02_label19.c[15877,15890] [2021-12-15 22:04:37,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:04:37,667 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:04:37,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37 WrapperNode [2021-12-15 22:04:37,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:04:37,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:04:37,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:04:37,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:04:37,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,742 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-12-15 22:04:37,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:04:37,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:04:37,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:04:37,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:04:37,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:04:37,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:04:37,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:04:37,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:04:37,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (1/1) ... [2021-12-15 22:04:37,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:04:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:37,857 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) [2021-12-15 22:04:37,903 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 [2021-12-15 22:04:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:04:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:04:37,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:04:37,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:04:38,002 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:04:38,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:04:38,644 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:04:38,658 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:04:38,658 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:04:38,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:38 BoogieIcfgContainer [2021-12-15 22:04:38,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:04:38,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:04:38,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:04:38,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:04:38,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:04:37" (1/3) ... [2021-12-15 22:04:38,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a9a736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:04:38, skipping insertion in model container [2021-12-15 22:04:38,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:37" (2/3) ... [2021-12-15 22:04:38,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a9a736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:04:38, skipping insertion in model container [2021-12-15 22:04:38,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:38" (3/3) ... [2021-12-15 22:04:38,671 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2021-12-15 22:04:38,678 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:04:38,678 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:04:38,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:04:38,715 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:04:38,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:04:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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) [2021-12-15 22:04:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 22:04:38,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:38,735 INFO L514 BasicCegarLoop]: 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, 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] [2021-12-15 22:04:38,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:38,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:38,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1607169461, now seen corresponding path program 1 times [2021-12-15 22:04:38,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:38,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012767016] [2021-12-15 22:04:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:38,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:39,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:39,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012767016] [2021-12-15 22:04:39,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012767016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:39,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:39,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:39,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434729843] [2021-12-15 22:04:39,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:39,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:39,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:39,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:39,060 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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) [2021-12-15 22:04:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:39,655 INFO L93 Difference]: Finished difference Result 639 states and 1082 transitions. [2021-12-15 22:04:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 92 [2021-12-15 22:04:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:39,665 INFO L225 Difference]: With dead ends: 639 [2021-12-15 22:04:39,666 INFO L226 Difference]: Without dead ends: 318 [2021-12-15 22:04:39,669 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:39,671 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 117 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:39,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 136 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:04:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-15 22:04:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2021-12-15 22:04:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4711538461538463) internal successors, (459), 312 states have internal predecessors, (459), 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) [2021-12-15 22:04:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2021-12-15 22:04:39,707 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 92 [2021-12-15 22:04:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:39,708 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2021-12-15 22:04:39,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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) [2021-12-15 22:04:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2021-12-15 22:04:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-15 22:04:39,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:39,710 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-15 22:04:39,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:04:39,711 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:39,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1513780896, now seen corresponding path program 1 times [2021-12-15 22:04:39,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:39,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726263443] [2021-12-15 22:04:39,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:39,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:39,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:39,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:39,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726263443] [2021-12-15 22:04:39,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726263443] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:39,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:39,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:39,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232070779] [2021-12-15 22:04:39,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:39,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:04:39,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:39,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:04:39,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:39,849 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-12-15 22:04:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:40,345 INFO L93 Difference]: Finished difference Result 989 states and 1492 transitions. [2021-12-15 22:04:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:04:40,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-12-15 22:04:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:40,348 INFO L225 Difference]: With dead ends: 989 [2021-12-15 22:04:40,349 INFO L226 Difference]: Without dead ends: 595 [2021-12-15 22:04:40,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:40,350 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 172 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:40,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 116 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:04:40,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-12-15 22:04:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2021-12-15 22:04:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.3383838383838385) internal successors, (795), 594 states have internal predecessors, (795), 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) [2021-12-15 22:04:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 795 transitions. [2021-12-15 22:04:40,366 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 795 transitions. Word has length 96 [2021-12-15 22:04:40,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:40,366 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 795 transitions. [2021-12-15 22:04:40,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-12-15 22:04:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 795 transitions. [2021-12-15 22:04:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 22:04:40,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:40,371 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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] [2021-12-15 22:04:40,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:04:40,371 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash 244451085, now seen corresponding path program 1 times [2021-12-15 22:04:40,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:40,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683597827] [2021-12-15 22:04:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:40,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 22:04:40,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:40,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683597827] [2021-12-15 22:04:40,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683597827] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:40,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:40,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:40,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376472315] [2021-12-15 22:04:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:40,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:40,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:40,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:40,419 INFO L87 Difference]: Start difference. First operand 595 states and 795 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2021-12-15 22:04:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:40,730 INFO L93 Difference]: Finished difference Result 1753 states and 2346 transitions. [2021-12-15 22:04:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 122 [2021-12-15 22:04:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:40,734 INFO L225 Difference]: With dead ends: 1753 [2021-12-15 22:04:40,734 INFO L226 Difference]: Without dead ends: 1160 [2021-12-15 22:04:40,735 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:40,736 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 126 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:40,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 127 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2021-12-15 22:04:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1157. [2021-12-15 22:04:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2093425605536332) internal successors, (1398), 1156 states have internal predecessors, (1398), 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) [2021-12-15 22:04:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1398 transitions. [2021-12-15 22:04:40,752 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1398 transitions. Word has length 122 [2021-12-15 22:04:40,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:40,752 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1398 transitions. [2021-12-15 22:04:40,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2021-12-15 22:04:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1398 transitions. [2021-12-15 22:04:40,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 22:04:40,754 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:40,755 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:40,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:04:40,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:40,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash 349190973, now seen corresponding path program 1 times [2021-12-15 22:04:40,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:40,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432137179] [2021-12-15 22:04:40,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:40,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:40,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:40,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432137179] [2021-12-15 22:04:40,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432137179] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:04:40,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328358730] [2021-12-15 22:04:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:40,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:40,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:40,826 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) [2021-12-15 22:04:40,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:04:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:40,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:04:40,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:04:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-15 22:04:41,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:04:41,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328358730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:41,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:04:41,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 22:04:41,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165635845] [2021-12-15 22:04:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:41,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:41,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:04:41,060 INFO L87 Difference]: Start difference. First operand 1157 states and 1398 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-12-15 22:04:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:41,405 INFO L93 Difference]: Finished difference Result 2876 states and 3548 transitions. [2021-12-15 22:04:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:41,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 125 [2021-12-15 22:04:41,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:41,410 INFO L225 Difference]: With dead ends: 2876 [2021-12-15 22:04:41,410 INFO L226 Difference]: Without dead ends: 1721 [2021-12-15 22:04:41,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:04:41,418 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 156 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:41,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 246 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-12-15 22:04:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2021-12-15 22:04:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1720 states have (on average 1.1784883720930233) internal successors, (2027), 1720 states have internal predecessors, (2027), 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) [2021-12-15 22:04:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2027 transitions. [2021-12-15 22:04:41,455 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2027 transitions. Word has length 125 [2021-12-15 22:04:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:41,456 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 2027 transitions. [2021-12-15 22:04:41,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-12-15 22:04:41,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2027 transitions. [2021-12-15 22:04:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 22:04:41,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:41,458 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-15 22:04:41,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 22:04:41,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:41,697 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1871097032, now seen corresponding path program 1 times [2021-12-15 22:04:41,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:41,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114946438] [2021-12-15 22:04:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:41,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:41,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:41,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114946438] [2021-12-15 22:04:41,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114946438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:41,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:41,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:41,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164505054] [2021-12-15 22:04:41,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:41,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:41,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:41,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:41,758 INFO L87 Difference]: Start difference. First operand 1721 states and 2027 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:42,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:42,046 INFO L93 Difference]: Finished difference Result 3440 states and 4055 transitions. [2021-12-15 22:04:42,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:42,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-12-15 22:04:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:42,050 INFO L225 Difference]: With dead ends: 3440 [2021-12-15 22:04:42,050 INFO L226 Difference]: Without dead ends: 1581 [2021-12-15 22:04:42,052 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:42,053 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 145 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:42,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 284 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2021-12-15 22:04:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1575. [2021-12-15 22:04:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 1.1486658195679798) internal successors, (1808), 1574 states have internal predecessors, (1808), 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) [2021-12-15 22:04:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 1808 transitions. [2021-12-15 22:04:42,090 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 1808 transitions. Word has length 125 [2021-12-15 22:04:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:42,091 INFO L470 AbstractCegarLoop]: Abstraction has 1575 states and 1808 transitions. [2021-12-15 22:04:42,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 1808 transitions. [2021-12-15 22:04:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-15 22:04:42,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:42,093 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-15 22:04:42,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:04:42,094 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:42,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1035919885, now seen corresponding path program 1 times [2021-12-15 22:04:42,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:42,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106116400] [2021-12-15 22:04:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:42,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:42,137 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:42,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:42,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106116400] [2021-12-15 22:04:42,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106116400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:42,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:42,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:42,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093397895] [2021-12-15 22:04:42,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:42,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:42,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:42,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:42,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:42,139 INFO L87 Difference]: Start difference. First operand 1575 states and 1808 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-12-15 22:04:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:42,429 INFO L93 Difference]: Finished difference Result 3711 states and 4231 transitions. [2021-12-15 22:04:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:42,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2021-12-15 22:04:42,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:42,434 INFO L225 Difference]: With dead ends: 3711 [2021-12-15 22:04:42,434 INFO L226 Difference]: Without dead ends: 1858 [2021-12-15 22:04:42,437 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:42,438 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 152 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:42,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 51 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2021-12-15 22:04:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1855. [2021-12-15 22:04:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1855 states, 1854 states have (on average 1.0862998921251348) internal successors, (2014), 1854 states have internal predecessors, (2014), 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) [2021-12-15 22:04:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2014 transitions. [2021-12-15 22:04:42,465 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2014 transitions. Word has length 128 [2021-12-15 22:04:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:42,465 INFO L470 AbstractCegarLoop]: Abstraction has 1855 states and 2014 transitions. [2021-12-15 22:04:42,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-12-15 22:04:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2014 transitions. [2021-12-15 22:04:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-15 22:04:42,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:42,468 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-15 22:04:42,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:04:42,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:42,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1602065651, now seen corresponding path program 1 times [2021-12-15 22:04:42,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:42,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478902181] [2021-12-15 22:04:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:42,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-15 22:04:42,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:42,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478902181] [2021-12-15 22:04:42,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478902181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:42,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:42,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:42,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022550393] [2021-12-15 22:04:42,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:42,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:42,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:42,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:42,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:42,583 INFO L87 Difference]: Start difference. First operand 1855 states and 2014 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-12-15 22:04:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:42,866 INFO L93 Difference]: Finished difference Result 4408 states and 4823 transitions. [2021-12-15 22:04:42,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:42,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 164 [2021-12-15 22:04:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:42,872 INFO L225 Difference]: With dead ends: 4408 [2021-12-15 22:04:42,872 INFO L226 Difference]: Without dead ends: 1847 [2021-12-15 22:04:42,874 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:42,875 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 100 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:42,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 252 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2021-12-15 22:04:42,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1707. [2021-12-15 22:04:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.073856975381008) internal successors, (1832), 1706 states have internal predecessors, (1832), 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) [2021-12-15 22:04:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1832 transitions. [2021-12-15 22:04:42,901 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1832 transitions. Word has length 164 [2021-12-15 22:04:42,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:42,901 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 1832 transitions. [2021-12-15 22:04:42,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-12-15 22:04:42,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1832 transitions. [2021-12-15 22:04:42,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-15 22:04:42,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:42,904 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1] [2021-12-15 22:04:42,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:04:42,904 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:42,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1228534662, now seen corresponding path program 1 times [2021-12-15 22:04:42,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:42,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572570601] [2021-12-15 22:04:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:42,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-15 22:04:42,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:42,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572570601] [2021-12-15 22:04:42,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572570601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:42,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:42,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:42,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050501960] [2021-12-15 22:04:42,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:42,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:42,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:42,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:42,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:42,954 INFO L87 Difference]: Start difference. First operand 1707 states and 1832 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-12-15 22:04:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:43,245 INFO L93 Difference]: Finished difference Result 3973 states and 4293 transitions. [2021-12-15 22:04:43,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:43,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 170 [2021-12-15 22:04:43,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:43,251 INFO L225 Difference]: With dead ends: 3973 [2021-12-15 22:04:43,251 INFO L226 Difference]: Without dead ends: 2128 [2021-12-15 22:04:43,253 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:43,254 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 132 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:43,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 196 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2021-12-15 22:04:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2127. [2021-12-15 22:04:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2126 states have (on average 1.0724365004703669) internal successors, (2280), 2126 states have internal predecessors, (2280), 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) [2021-12-15 22:04:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2280 transitions. [2021-12-15 22:04:43,281 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2280 transitions. Word has length 170 [2021-12-15 22:04:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:43,282 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2280 transitions. [2021-12-15 22:04:43,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-12-15 22:04:43,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2280 transitions. [2021-12-15 22:04:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-15 22:04:43,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:43,285 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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] [2021-12-15 22:04:43,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:04:43,285 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:43,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash 64631300, now seen corresponding path program 1 times [2021-12-15 22:04:43,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:43,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003910497] [2021-12-15 22:04:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:43,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 22:04:43,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:43,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003910497] [2021-12-15 22:04:43,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003910497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:43,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:43,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:43,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503893745] [2021-12-15 22:04:43,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:43,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:43,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:43,338 INFO L87 Difference]: Start difference. First operand 2127 states and 2280 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-12-15 22:04:43,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:43,589 INFO L93 Difference]: Finished difference Result 4528 states and 4839 transitions. [2021-12-15 22:04:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:43,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 170 [2021-12-15 22:04:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:43,595 INFO L225 Difference]: With dead ends: 4528 [2021-12-15 22:04:43,595 INFO L226 Difference]: Without dead ends: 2261 [2021-12-15 22:04:43,597 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:43,598 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:43,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 30 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:04:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2021-12-15 22:04:43,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2121. [2021-12-15 22:04:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2120 states have (on average 1.0528301886792453) internal successors, (2232), 2120 states have internal predecessors, (2232), 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) [2021-12-15 22:04:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2232 transitions. [2021-12-15 22:04:43,644 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2232 transitions. Word has length 170 [2021-12-15 22:04:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:43,644 INFO L470 AbstractCegarLoop]: Abstraction has 2121 states and 2232 transitions. [2021-12-15 22:04:43,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-12-15 22:04:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2232 transitions. [2021-12-15 22:04:43,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-15 22:04:43,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:43,647 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-15 22:04:43,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:04:43,648 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:43,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash 747323663, now seen corresponding path program 1 times [2021-12-15 22:04:43,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:43,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564900476] [2021-12-15 22:04:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:43,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-15 22:04:43,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:43,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564900476] [2021-12-15 22:04:43,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564900476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:43,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:43,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:43,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822911197] [2021-12-15 22:04:43,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:43,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:43,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:43,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:43,731 INFO L87 Difference]: Start difference. First operand 2121 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-12-15 22:04:43,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:43,970 INFO L93 Difference]: Finished difference Result 4100 states and 4319 transitions. [2021-12-15 22:04:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:43,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 193 [2021-12-15 22:04:43,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:43,976 INFO L225 Difference]: With dead ends: 4100 [2021-12-15 22:04:43,976 INFO L226 Difference]: Without dead ends: 2121 [2021-12-15 22:04:43,978 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:43,978 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 70 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:43,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 174 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:04:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2021-12-15 22:04:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2121. [2021-12-15 22:04:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2120 states have (on average 1.0509433962264152) internal successors, (2228), 2120 states have internal predecessors, (2228), 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) [2021-12-15 22:04:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2228 transitions. [2021-12-15 22:04:44,004 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2228 transitions. Word has length 193 [2021-12-15 22:04:44,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:44,005 INFO L470 AbstractCegarLoop]: Abstraction has 2121 states and 2228 transitions. [2021-12-15 22:04:44,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-12-15 22:04:44,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2228 transitions. [2021-12-15 22:04:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-15 22:04:44,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:44,008 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:44,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 22:04:44,009 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:44,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2113998441, now seen corresponding path program 1 times [2021-12-15 22:04:44,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:44,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315623705] [2021-12-15 22:04:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:44,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-15 22:04:44,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:44,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315623705] [2021-12-15 22:04:44,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315623705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:44,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:44,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:44,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858231245] [2021-12-15 22:04:44,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:44,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:44,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:44,061 INFO L87 Difference]: Start difference. First operand 2121 states and 2228 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-12-15 22:04:44,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:44,318 INFO L93 Difference]: Finished difference Result 4240 states and 4459 transitions. [2021-12-15 22:04:44,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:44,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 210 [2021-12-15 22:04:44,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:44,323 INFO L225 Difference]: With dead ends: 4240 [2021-12-15 22:04:44,324 INFO L226 Difference]: Without dead ends: 2120 [2021-12-15 22:04:44,326 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:44,326 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 146 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:44,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 52 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:04:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2021-12-15 22:04:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1980. [2021-12-15 22:04:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1979 states have (on average 1.043456291056089) internal successors, (2065), 1979 states have internal predecessors, (2065), 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) [2021-12-15 22:04:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2065 transitions. [2021-12-15 22:04:44,347 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2065 transitions. Word has length 210 [2021-12-15 22:04:44,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:44,348 INFO L470 AbstractCegarLoop]: Abstraction has 1980 states and 2065 transitions. [2021-12-15 22:04:44,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-12-15 22:04:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2065 transitions. [2021-12-15 22:04:44,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-15 22:04:44,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:44,351 INFO L514 BasicCegarLoop]: 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 22:04:44,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 22:04:44,351 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:44,352 INFO L85 PathProgramCache]: Analyzing trace with hash -133691509, now seen corresponding path program 1 times [2021-12-15 22:04:44,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:44,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506438736] [2021-12-15 22:04:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:44,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:44,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:44,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506438736] [2021-12-15 22:04:44,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506438736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:44,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:44,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:04:44,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120997055] [2021-12-15 22:04:44,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:44,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:04:44,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:44,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:04:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:44,427 INFO L87 Difference]: Start difference. First operand 1980 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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) [2021-12-15 22:04:44,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:44,792 INFO L93 Difference]: Finished difference Result 3675 states and 3838 transitions. [2021-12-15 22:04:44,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:04:44,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 222 [2021-12-15 22:04:44,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:44,796 INFO L225 Difference]: With dead ends: 3675 [2021-12-15 22:04:44,797 INFO L226 Difference]: Without dead ends: 1837 [2021-12-15 22:04:44,798 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:04:44,799 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 231 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:44,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 219 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2021-12-15 22:04:44,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1836. [2021-12-15 22:04:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1835 states have (on average 1.0425068119891008) internal successors, (1913), 1835 states have internal predecessors, (1913), 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) [2021-12-15 22:04:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 1913 transitions. [2021-12-15 22:04:44,820 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 1913 transitions. Word has length 222 [2021-12-15 22:04:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:44,821 INFO L470 AbstractCegarLoop]: Abstraction has 1836 states and 1913 transitions. [2021-12-15 22:04:44,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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) [2021-12-15 22:04:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 1913 transitions. [2021-12-15 22:04:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-15 22:04:44,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:44,833 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:44,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 22:04:44,833 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:44,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash -193237681, now seen corresponding path program 1 times [2021-12-15 22:04:44,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:44,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177844870] [2021-12-15 22:04:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:44,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-15 22:04:44,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:44,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177844870] [2021-12-15 22:04:44,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177844870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:44,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:44,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:44,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637823133] [2021-12-15 22:04:44,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:44,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:04:44,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:44,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:04:44,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:44,935 INFO L87 Difference]: Start difference. First operand 1836 states and 1913 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:45,180 INFO L93 Difference]: Finished difference Result 1920 states and 1996 transitions. [2021-12-15 22:04:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:04:45,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-12-15 22:04:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:45,184 INFO L225 Difference]: With dead ends: 1920 [2021-12-15 22:04:45,184 INFO L226 Difference]: Without dead ends: 1696 [2021-12-15 22:04:45,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:45,185 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 111 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:45,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 32 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:04:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2021-12-15 22:04:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1696. [2021-12-15 22:04:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.038938053097345) internal successors, (1761), 1695 states have internal predecessors, (1761), 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) [2021-12-15 22:04:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 1761 transitions. [2021-12-15 22:04:45,201 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 1761 transitions. Word has length 234 [2021-12-15 22:04:45,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:45,202 INFO L470 AbstractCegarLoop]: Abstraction has 1696 states and 1761 transitions. [2021-12-15 22:04:45,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 1761 transitions. [2021-12-15 22:04:45,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-15 22:04:45,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:45,205 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-12-15 22:04:45,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 22:04:45,205 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:45,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash -427713130, now seen corresponding path program 1 times [2021-12-15 22:04:45,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:45,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741395092] [2021-12-15 22:04:45,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:45,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 181 proven. 74 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-15 22:04:45,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:45,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741395092] [2021-12-15 22:04:45,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741395092] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:04:45,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065997492] [2021-12-15 22:04:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:45,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:45,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:45,264 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) [2021-12-15 22:04:45,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:04:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:45,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:04:45,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:04:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-12-15 22:04:45,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:04:45,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065997492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:45,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:04:45,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-12-15 22:04:45,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612295181] [2021-12-15 22:04:45,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:45,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:45,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:04:45,735 INFO L87 Difference]: Start difference. First operand 1696 states and 1761 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2021-12-15 22:04:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:45,858 INFO L93 Difference]: Finished difference Result 1696 states and 1761 transitions. [2021-12-15 22:04:45,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:45,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 246 [2021-12-15 22:04:45,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:45,859 INFO L225 Difference]: With dead ends: 1696 [2021-12-15 22:04:45,859 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:04:45,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:04:45,860 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 84 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:45,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 17 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 22:04:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:04:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:04:45,861 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) [2021-12-15 22:04:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:04:45,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2021-12-15 22:04:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:45,861 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:04:45,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2021-12-15 22:04:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:04:45,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:04:45,863 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:04:45,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:04:46,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-15 22:04:46,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-12-15 22:04:46,872 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-12-15 22:04:46,873 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-12-15 22:04:46,874 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-12-15 22:04:46,875 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:04:46,876 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2021-12-15 22:04:46,876 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,876 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,876 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-12-15 22:04:46,877 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,878 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-12-15 22:04:46,879 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-12-15 22:04:46,880 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse6 (<= 10 ~a28~0)) (.cse7 (<= ~a17~0 7)) (.cse8 (<= 9 ~a28~0)) (.cse10 (<= ~a28~0 7)) (.cse9 (<= ~a25~0 0)) (.cse1 (= ~a17~0 8)) (.cse0 (not (= 1 ~a11~0))) (.cse11 (<= 8 ~a17~0)) (.cse5 (<= ~a28~0 10)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a19~0 1)) (.cse4 (= ~a25~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse4 .cse5 .cse6) (and .cse4 .cse7 .cse8) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse9) (and .cse1 .cse2 .cse3 .cse5 .cse9 .cse8) (and .cse2 .cse10 .cse9) (and .cse1 .cse2 .cse3 .cse10 .cse4) (and .cse0 .cse11 .cse2 .cse10 .cse4) (and .cse0 .cse2 .cse9) (and .cse1 .cse2 (= ~a28~0 9) .cse3 .cse4) (and .cse0 .cse2 .cse11 .cse3 .cse4 .cse5) (and (= ~a28~0 7) .cse2 .cse3 (= ~a11~0 1) .cse4 (= ~a17~0 7)))) [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-12-15 22:04:46,881 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-12-15 22:04:46,882 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-15 22:04:46,883 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse6 (<= 10 ~a28~0)) (.cse7 (<= ~a17~0 7)) (.cse8 (<= 9 ~a28~0)) (.cse10 (<= ~a28~0 7)) (.cse9 (<= ~a25~0 0)) (.cse1 (= ~a17~0 8)) (.cse0 (not (= 1 ~a11~0))) (.cse11 (<= 8 ~a17~0)) (.cse5 (<= ~a28~0 10)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a19~0 1)) (.cse4 (= ~a25~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse4 .cse5 .cse6) (and .cse4 .cse7 .cse8) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse9) (and .cse1 .cse2 .cse3 .cse5 .cse9 .cse8) (and .cse2 .cse10 .cse9) (and .cse1 .cse2 .cse3 .cse10 .cse4) (and .cse0 .cse11 .cse2 .cse10 .cse4) (and .cse0 .cse2 .cse9) (and .cse1 .cse2 (= ~a28~0 9) .cse3 .cse4) (and .cse0 .cse2 .cse11 .cse3 .cse4 .cse5) (and (= ~a28~0 7) .cse2 .cse3 (= ~a11~0 1) .cse4 (= ~a17~0 7)))) [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,884 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,885 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,886 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-12-15 22:04:46,887 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-15 22:04:46,888 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-12-15 22:04:46,888 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-12-15 22:04:46,888 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-12-15 22:04:46,888 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-12-15 22:04:46,891 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:46,892 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:04:46,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:04:46 BoogieIcfgContainer [2021-12-15 22:04:46,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:04:46,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:04:46,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:04:46,907 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:04:46,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:38" (3/4) ... [2021-12-15 22:04:46,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:04:46,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:04:46,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:04:46,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:04:46,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:04:47,014 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:04:47,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:04:47,014 INFO L158 Benchmark]: Toolchain (without parser) took 9771.55ms. Allocated memory was 86.0MB in the beginning and 232.8MB in the end (delta: 146.8MB). Free memory was 60.5MB in the beginning and 132.6MB in the end (delta: -72.1MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,015 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:04:47,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.69ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 46.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.87ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 79.8MB in the end (delta: -33.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,016 INFO L158 Benchmark]: Boogie Preprocessor took 67.99ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 76.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,016 INFO L158 Benchmark]: RCFGBuilder took 846.73ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 53.2MB in the end (delta: 23.7MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,016 INFO L158 Benchmark]: TraceAbstraction took 8241.58ms. Allocated memory was 104.9MB in the beginning and 232.8MB in the end (delta: 127.9MB). Free memory was 52.7MB in the beginning and 147.3MB in the end (delta: -94.6MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,017 INFO L158 Benchmark]: Witness Printer took 107.16ms. Allocated memory is still 232.8MB. Free memory was 147.3MB in the beginning and 132.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:04:47,022 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 86.0MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.69ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 46.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.87ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 79.8MB in the end (delta: -33.4MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.99ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 76.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * RCFGBuilder took 846.73ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 53.2MB in the end (delta: 23.7MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8241.58ms. Allocated memory was 104.9MB in the beginning and 232.8MB in the end (delta: 127.9MB). Free memory was 52.7MB in the beginning and 147.3MB in the end (delta: -94.6MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. * Witness Printer took 107.16ms. Allocated memory is still 232.8MB. Free memory was 147.3MB in the beginning and 132.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 458]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1883 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1883 mSDsluCounter, 1932 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5307 IncrementalHoareTripleChecker+Invalid, 6043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 736 mSolverCounterUnsat, 1709 mSDtfsCounter, 5307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 412 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2127occurred in iteration=8, InterpolantAutomatonStates: 45, 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, 14 MinimizatonAttempts, 439 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 433 HoareAnnotationTreeSize, 3 FomulaSimplifications, 126 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 626 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2668 NumberOfCodeBlocks, 2668 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2652 ConstructedInterpolants, 0 QuantifiedInterpolants, 7847 SizeOfPredicates, 0 NumberOfNonLiveVariables, 710 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 1858/1945 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((((((!(1 == a11) && a17 == 8) && a21 == 1) && a19 == 1) && a25 == 1) || ((((!(1 == a11) && a21 == 1) && a25 == 1) && a28 <= 10) && 10 <= a28)) || ((a25 == 1 && a17 <= 7) && 9 <= a28)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && a28 <= 10) && 10 <= a28)) || ((((!(1 == a11) && a19 == 1) && a25 == 1) && a28 <= 10) && 10 <= a28)) || (a17 <= 7 && a25 <= 0)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || ((a21 == 1 && a28 <= 7) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && a25 == 1)) || ((((!(1 == a11) && 8 <= a17) && a21 == 1) && a28 <= 7) && a25 == 1)) || ((!(1 == a11) && a21 == 1) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a28 == 9) && a19 == 1) && a25 == 1)) || (((((!(1 == a11) && a21 == 1) && 8 <= a17) && a19 == 1) && a25 == 1) && a28 <= 10)) || (((((a28 == 7 && a21 == 1) && a19 == 1) && a11 == 1) && a25 == 1) && a17 == 7) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((((!(1 == a11) && a17 == 8) && a21 == 1) && a19 == 1) && a25 == 1) || ((((!(1 == a11) && a21 == 1) && a25 == 1) && a28 <= 10) && 10 <= a28)) || ((a25 == 1 && a17 <= 7) && 9 <= a28)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && a28 <= 10) && 10 <= a28)) || ((((!(1 == a11) && a19 == 1) && a25 == 1) && a28 <= 10) && 10 <= a28)) || (a17 <= 7 && a25 <= 0)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || ((a21 == 1 && a28 <= 7) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && a25 == 1)) || ((((!(1 == a11) && 8 <= a17) && a21 == 1) && a28 <= 7) && a25 == 1)) || ((!(1 == a11) && a21 == 1) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a28 == 9) && a19 == 1) && a25 == 1)) || (((((!(1 == a11) && a21 == 1) && 8 <= a17) && a19 == 1) && a25 == 1) && a28 <= 10)) || (((((a28 == 7 && a21 == 1) && a19 == 1) && a11 == 1) && a25 == 1) && a17 == 7) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:04:47,063 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