./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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/Problem17_label53.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 1a38205e3959e6525b83c93048d4c167030358e78fc3e837355c804b08f2636e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 09:38:27,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 09:38:27,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 09:38:27,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 09:38:27,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 09:38:27,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 09:38:27,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 09:38:27,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 09:38:27,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 09:38:27,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 09:38:27,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 09:38:27,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 09:38:27,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 09:38:27,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 09:38:27,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 09:38:27,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 09:38:27,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 09:38:27,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 09:38:27,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 09:38:27,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 09:38:27,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 09:38:27,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 09:38:27,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 09:38:27,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 09:38:27,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 09:38:27,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 09:38:27,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 09:38:27,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 09:38:27,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 09:38:27,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 09:38:27,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 09:38:27,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 09:38:27,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 09:38:27,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 09:38:27,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 09:38:27,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 09:38:27,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 09:38:27,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 09:38:27,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 09:38:27,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 09:38:27,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 09:38:27,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 09:38:27,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 09:38:27,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 09:38:27,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 09:38:27,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 09:38:27,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 09:38:27,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 09:38:27,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 09:38:27,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 09:38:27,910 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 09:38:27,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 09:38:27,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 09:38:27,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 09:38:27,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 09:38:27,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 09:38:27,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 09:38:27,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 09:38:27,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 09:38:27,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 09:38:27,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 09:38:27,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 09:38:27,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 09:38:27,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 09:38:27,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 09:38:27,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 09:38:27,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 09:38:27,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 09:38:27,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 09:38:27,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 09:38:27,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 09:38:27,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 09:38:27,914 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 09:38:27,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 09:38:27,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 09:38:27,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 09:38:27,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a38205e3959e6525b83c93048d4c167030358e78fc3e837355c804b08f2636e [2021-12-22 09:38:28,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 09:38:28,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 09:38:28,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 09:38:28,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 09:38:28,153 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 09:38:28,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label53.c [2021-12-22 09:38:28,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/124ab777c/db3f5e6b2e994fd28fed122b04085afe/FLAG978edb075 [2021-12-22 09:38:28,772 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 09:38:28,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label53.c [2021-12-22 09:38:28,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/124ab777c/db3f5e6b2e994fd28fed122b04085afe/FLAG978edb075 [2021-12-22 09:38:29,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/124ab777c/db3f5e6b2e994fd28fed122b04085afe [2021-12-22 09:38:29,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 09:38:29,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 09:38:29,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 09:38:29,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 09:38:29,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 09:38:29,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:38:29" (1/1) ... [2021-12-22 09:38:29,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4caf6c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:29, skipping insertion in model container [2021-12-22 09:38:29,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:38:29" (1/1) ... [2021-12-22 09:38:29,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 09:38:29,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 09:38:29,494 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/Problem17_label53.c[2227,2240] [2021-12-22 09:38:29,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 09:38:29,909 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 09:38:29,924 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/Problem17_label53.c[2227,2240] [2021-12-22 09:38:30,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 09:38:30,108 INFO L208 MainTranslator]: Completed translation [2021-12-22 09:38:30,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30 WrapperNode [2021-12-22 09:38:30,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 09:38:30,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 09:38:30,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 09:38:30,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 09:38:30,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,367 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2611 [2021-12-22 09:38:30,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 09:38:30,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 09:38:30,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 09:38:30,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 09:38:30,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 09:38:30,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 09:38:30,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 09:38:30,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 09:38:30,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (1/1) ... [2021-12-22 09:38:30,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 09:38:30,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:38:30,724 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) [2021-12-22 09:38:30,742 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 [2021-12-22 09:38:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 09:38:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 09:38:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 09:38:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 09:38:30,813 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 09:38:30,840 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 09:38:33,076 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 09:38:33,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 09:38:33,087 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 09:38:33,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:38:33 BoogieIcfgContainer [2021-12-22 09:38:33,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 09:38:33,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 09:38:33,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 09:38:33,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 09:38:33,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:38:29" (1/3) ... [2021-12-22 09:38:33,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31253957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:38:33, skipping insertion in model container [2021-12-22 09:38:33,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:38:30" (2/3) ... [2021-12-22 09:38:33,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31253957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:38:33, skipping insertion in model container [2021-12-22 09:38:33,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:38:33" (3/3) ... [2021-12-22 09:38:33,094 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem17_label53.c [2021-12-22 09:38:33,097 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 09:38:33,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 09:38:33,128 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 09:38:33,132 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 [2021-12-22 09:38:33,132 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 09:38:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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) [2021-12-22 09:38:33,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-22 09:38:33,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:33,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:38:33,151 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:33,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1414013846, now seen corresponding path program 1 times [2021-12-22 09:38:33,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:33,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739987714] [2021-12-22 09:38:33,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:33,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:33,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:33,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739987714] [2021-12-22 09:38:33,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739987714] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:33,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:33,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:38:33,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95933872] [2021-12-22 09:38:33,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:33,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:33,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:33,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:33,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:33,296 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:38:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:35,456 INFO L93 Difference]: Finished difference Result 1644 states and 3029 transitions. [2021-12-22 09:38:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:35,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-22 09:38:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:35,470 INFO L225 Difference]: With dead ends: 1644 [2021-12-22 09:38:35,470 INFO L226 Difference]: Without dead ends: 977 [2021-12-22 09:38:35,477 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 [2021-12-22 09:38:35,515 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 474 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:35,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 503 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 09:38:35,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-12-22 09:38:35,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 971. [2021-12-22 09:38:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5536082474226804) internal successors, (1507), 970 states have internal predecessors, (1507), 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) [2021-12-22 09:38:35,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1507 transitions. [2021-12-22 09:38:35,600 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1507 transitions. Word has length 14 [2021-12-22 09:38:35,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:35,601 INFO L470 AbstractCegarLoop]: Abstraction has 971 states and 1507 transitions. [2021-12-22 09:38:35,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:38:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1507 transitions. [2021-12-22 09:38:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 09:38:35,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:35,603 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 09:38:35,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 09:38:35,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:35,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash -222699934, now seen corresponding path program 1 times [2021-12-22 09:38:35,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:35,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495724047] [2021-12-22 09:38:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:35,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:35,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:35,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495724047] [2021-12-22 09:38:35,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495724047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:35,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:35,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:38:35,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205189692] [2021-12-22 09:38:35,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:35,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:35,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:35,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:35,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:35,710 INFO L87 Difference]: Start difference. First operand 971 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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) [2021-12-22 09:38:37,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:37,594 INFO L93 Difference]: Finished difference Result 2815 states and 4382 transitions. [2021-12-22 09:38:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:37,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2021-12-22 09:38:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:37,600 INFO L225 Difference]: With dead ends: 2815 [2021-12-22 09:38:37,600 INFO L226 Difference]: Without dead ends: 1846 [2021-12-22 09:38:37,602 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 [2021-12-22 09:38:37,603 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:37,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 580 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 09:38:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-12-22 09:38:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1841. [2021-12-22 09:38:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.3505434782608696) internal successors, (2485), 1840 states have internal predecessors, (2485), 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) [2021-12-22 09:38:37,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2485 transitions. [2021-12-22 09:38:37,627 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2485 transitions. Word has length 81 [2021-12-22 09:38:37,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:37,628 INFO L470 AbstractCegarLoop]: Abstraction has 1841 states and 2485 transitions. [2021-12-22 09:38:37,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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) [2021-12-22 09:38:37,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2485 transitions. [2021-12-22 09:38:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-22 09:38:37,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:37,630 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 09:38:37,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 09:38:37,630 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:37,631 INFO L85 PathProgramCache]: Analyzing trace with hash -705786570, now seen corresponding path program 1 times [2021-12-22 09:38:37,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:37,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584275007] [2021-12-22 09:38:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:37,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:37,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:37,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584275007] [2021-12-22 09:38:37,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584275007] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:37,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:37,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:38:37,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655781647] [2021-12-22 09:38:37,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:37,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:37,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:37,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:37,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:37,717 INFO L87 Difference]: Start difference. First operand 1841 states and 2485 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-12-22 09:38:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:39,347 INFO L93 Difference]: Finished difference Result 4552 states and 6285 transitions. [2021-12-22 09:38:39,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:39,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2021-12-22 09:38:39,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:39,355 INFO L225 Difference]: With dead ends: 4552 [2021-12-22 09:38:39,355 INFO L226 Difference]: Without dead ends: 2713 [2021-12-22 09:38:39,357 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 [2021-12-22 09:38:39,358 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 493 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:39,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 886 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 09:38:39,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-12-22 09:38:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2711. [2021-12-22 09:38:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.3007380073800738) internal successors, (3525), 2710 states have internal predecessors, (3525), 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) [2021-12-22 09:38:39,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3525 transitions. [2021-12-22 09:38:39,397 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3525 transitions. Word has length 84 [2021-12-22 09:38:39,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:39,398 INFO L470 AbstractCegarLoop]: Abstraction has 2711 states and 3525 transitions. [2021-12-22 09:38:39,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-12-22 09:38:39,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3525 transitions. [2021-12-22 09:38:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-22 09:38:39,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:39,405 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:38:39,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 09:38:39,406 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:39,407 INFO L85 PathProgramCache]: Analyzing trace with hash -261624751, now seen corresponding path program 1 times [2021-12-22 09:38:39,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:39,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786292761] [2021-12-22 09:38:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:39,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-22 09:38:39,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:39,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786292761] [2021-12-22 09:38:39,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786292761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:39,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:39,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:38:39,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226644336] [2021-12-22 09:38:39,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:39,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:39,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:39,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:39,568 INFO L87 Difference]: Start difference. First operand 2711 states and 3525 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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) [2021-12-22 09:38:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:41,185 INFO L93 Difference]: Finished difference Result 7984 states and 10364 transitions. [2021-12-22 09:38:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:41,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 153 [2021-12-22 09:38:41,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:41,198 INFO L225 Difference]: With dead ends: 7984 [2021-12-22 09:38:41,199 INFO L226 Difference]: Without dead ends: 4421 [2021-12-22 09:38:41,203 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 [2021-12-22 09:38:41,209 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:41,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 09:38:41,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2021-12-22 09:38:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 3566. [2021-12-22 09:38:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 3565 states have (on average 1.1778401122019635) internal successors, (4199), 3565 states have internal predecessors, (4199), 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) [2021-12-22 09:38:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4199 transitions. [2021-12-22 09:38:41,261 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4199 transitions. Word has length 153 [2021-12-22 09:38:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:41,262 INFO L470 AbstractCegarLoop]: Abstraction has 3566 states and 4199 transitions. [2021-12-22 09:38:41,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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) [2021-12-22 09:38:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4199 transitions. [2021-12-22 09:38:41,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-22 09:38:41,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:41,264 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 09:38:41,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 09:38:41,264 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:41,265 INFO L85 PathProgramCache]: Analyzing trace with hash -739842227, now seen corresponding path program 1 times [2021-12-22 09:38:41,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:41,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558185503] [2021-12-22 09:38:41,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:41,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:41,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:41,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558185503] [2021-12-22 09:38:41,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558185503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:41,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:41,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:38:41,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241833561] [2021-12-22 09:38:41,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:41,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:41,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:41,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:41,413 INFO L87 Difference]: Start difference. First operand 3566 states and 4199 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-12-22 09:38:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:42,630 INFO L93 Difference]: Finished difference Result 9263 states and 11078 transitions. [2021-12-22 09:38:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:42,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2021-12-22 09:38:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:42,645 INFO L225 Difference]: With dead ends: 9263 [2021-12-22 09:38:42,645 INFO L226 Difference]: Without dead ends: 5699 [2021-12-22 09:38:42,650 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 [2021-12-22 09:38:42,654 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:42,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 09:38:42,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2021-12-22 09:38:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 5699. [2021-12-22 09:38:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5698 states have (on average 1.1597051597051597) internal successors, (6608), 5698 states have internal predecessors, (6608), 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) [2021-12-22 09:38:42,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6608 transitions. [2021-12-22 09:38:42,730 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6608 transitions. Word has length 166 [2021-12-22 09:38:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:42,732 INFO L470 AbstractCegarLoop]: Abstraction has 5699 states and 6608 transitions. [2021-12-22 09:38:42,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-12-22 09:38:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6608 transitions. [2021-12-22 09:38:42,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-22 09:38:42,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:42,736 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 09:38:42,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 09:38:42,736 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:42,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2098323832, now seen corresponding path program 1 times [2021-12-22 09:38:42,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:42,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407547125] [2021-12-22 09:38:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:42,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:42,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:42,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407547125] [2021-12-22 09:38:42,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407547125] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 09:38:42,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485862100] [2021-12-22 09:38:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:42,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:38:42,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:38:42,859 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) [2021-12-22 09:38:42,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 09:38:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:42,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 09:38:42,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 09:38:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:43,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 09:38:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:44,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485862100] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-22 09:38:44,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-22 09:38:44,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2021-12-22 09:38:44,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551923509] [2021-12-22 09:38:44,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:44,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:38:44,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:38:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-22 09:38:44,038 INFO L87 Difference]: Start difference. First operand 5699 states and 6608 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) [2021-12-22 09:38:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:46,637 INFO L93 Difference]: Finished difference Result 16961 states and 19953 transitions. [2021-12-22 09:38:46,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:38:46,638 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 168 [2021-12-22 09:38:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:46,661 INFO L225 Difference]: With dead ends: 16961 [2021-12-22 09:38:46,661 INFO L226 Difference]: Without dead ends: 10384 [2021-12-22 09:38:46,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 331 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-22 09:38:46,666 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 1049 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:46,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 152 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-22 09:38:46,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10384 states. [2021-12-22 09:38:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10384 to 10379. [2021-12-22 09:38:46,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 1.1553285796878012) internal successors, (11990), 10378 states have internal predecessors, (11990), 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) [2021-12-22 09:38:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 11990 transitions. [2021-12-22 09:38:46,803 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 11990 transitions. Word has length 168 [2021-12-22 09:38:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:46,804 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 11990 transitions. [2021-12-22 09:38:46,804 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) [2021-12-22 09:38:46,804 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 11990 transitions. [2021-12-22 09:38:46,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-22 09:38:46,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:46,806 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:38:46,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 09:38:47,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-22 09:38:47,022 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:47,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:47,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1788847814, now seen corresponding path program 1 times [2021-12-22 09:38:47,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:47,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894672083] [2021-12-22 09:38:47,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:47,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 35 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:47,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:47,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894672083] [2021-12-22 09:38:47,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894672083] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 09:38:47,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735402147] [2021-12-22 09:38:47,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:47,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:38:47,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:38:47,162 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) [2021-12-22 09:38:47,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 09:38:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:47,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 09:38:47,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 09:38:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 164 proven. 73 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 09:38:47,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 09:38:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 09:38:48,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735402147] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-22 09:38:48,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-22 09:38:48,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 6 [2021-12-22 09:38:48,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088552790] [2021-12-22 09:38:48,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:48,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:38:48,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:48,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:38:48,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-22 09:38:48,238 INFO L87 Difference]: Start difference. First operand 10379 states and 11990 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-22 09:38:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:50,678 INFO L93 Difference]: Finished difference Result 28865 states and 33388 transitions. [2021-12-22 09:38:50,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:38:50,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 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 242 [2021-12-22 09:38:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:50,705 INFO L225 Difference]: With dead ends: 28865 [2021-12-22 09:38:50,705 INFO L226 Difference]: Without dead ends: 18488 [2021-12-22 09:38:50,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 479 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-22 09:38:50,718 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 883 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:50,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 171 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 09:38:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18488 states. [2021-12-22 09:38:50,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18488 to 18482. [2021-12-22 09:38:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 18481 states have (on average 1.1429035225366593) internal successors, (21122), 18481 states have internal predecessors, (21122), 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) [2021-12-22 09:38:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 21122 transitions. [2021-12-22 09:38:50,994 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 21122 transitions. Word has length 242 [2021-12-22 09:38:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:50,994 INFO L470 AbstractCegarLoop]: Abstraction has 18482 states and 21122 transitions. [2021-12-22 09:38:50,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-22 09:38:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 21122 transitions. [2021-12-22 09:38:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-22 09:38:50,999 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:51,000 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-22 09:38:51,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-22 09:38:51,234 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,SelfDestructingSolverStorable6 [2021-12-22 09:38:51,234 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash -91274060, now seen corresponding path program 1 times [2021-12-22 09:38:51,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:51,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821478789] [2021-12-22 09:38:51,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:51,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-22 09:38:51,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:51,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821478789] [2021-12-22 09:38:51,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821478789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:51,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:51,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:38:51,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139236644] [2021-12-22 09:38:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:51,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:51,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:51,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:51,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:51,376 INFO L87 Difference]: Start difference. First operand 18482 states and 21122 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2021-12-22 09:38:53,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:53,014 INFO L93 Difference]: Finished difference Result 50634 states and 57338 transitions. [2021-12-22 09:38:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:53,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 347 [2021-12-22 09:38:53,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:53,063 INFO L225 Difference]: With dead ends: 50634 [2021-12-22 09:38:53,063 INFO L226 Difference]: Without dead ends: 32154 [2021-12-22 09:38:53,083 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 [2021-12-22 09:38:53,083 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 426 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:53,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 668 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 09:38:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32154 states. [2021-12-22 09:38:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32154 to 29570. [2021-12-22 09:38:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29570 states, 29569 states have (on average 1.131117048260002) internal successors, (33446), 29569 states have internal predecessors, (33446), 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) [2021-12-22 09:38:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29570 states to 29570 states and 33446 transitions. [2021-12-22 09:38:53,478 INFO L78 Accepts]: Start accepts. Automaton has 29570 states and 33446 transitions. Word has length 347 [2021-12-22 09:38:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:53,483 INFO L470 AbstractCegarLoop]: Abstraction has 29570 states and 33446 transitions. [2021-12-22 09:38:53,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2021-12-22 09:38:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 29570 states and 33446 transitions. [2021-12-22 09:38:53,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-22 09:38:53,492 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:53,492 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:38:53,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 09:38:53,493 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1534862679, now seen corresponding path program 1 times [2021-12-22 09:38:53,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:53,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630653701] [2021-12-22 09:38:53,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:53,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-22 09:38:53,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:53,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630653701] [2021-12-22 09:38:53,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630653701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:53,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:53,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:38:53,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466758321] [2021-12-22 09:38:53,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:53,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:38:53,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:53,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:38:53,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:38:53,619 INFO L87 Difference]: Start difference. First operand 29570 states and 33446 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2021-12-22 09:38:55,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:55,343 INFO L93 Difference]: Finished difference Result 68519 states and 77907 transitions. [2021-12-22 09:38:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:38:55,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 348 [2021-12-22 09:38:55,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:55,401 INFO L225 Difference]: With dead ends: 68519 [2021-12-22 09:38:55,401 INFO L226 Difference]: Without dead ends: 38950 [2021-12-22 09:38:55,422 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 [2021-12-22 09:38:55,422 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 436 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:55,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 641 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-22 09:38:55,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38950 states. [2021-12-22 09:38:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38950 to 36818. [2021-12-22 09:38:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36818 states, 36817 states have (on average 1.1341228236955754) internal successors, (41755), 36817 states have internal predecessors, (41755), 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) [2021-12-22 09:38:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36818 states to 36818 states and 41755 transitions. [2021-12-22 09:38:55,915 INFO L78 Accepts]: Start accepts. Automaton has 36818 states and 41755 transitions. Word has length 348 [2021-12-22 09:38:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:55,915 INFO L470 AbstractCegarLoop]: Abstraction has 36818 states and 41755 transitions. [2021-12-22 09:38:55,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2021-12-22 09:38:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36818 states and 41755 transitions. [2021-12-22 09:38:55,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-12-22 09:38:55,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:55,921 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-22 09:38:55,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 09:38:55,921 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:55,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:55,922 INFO L85 PathProgramCache]: Analyzing trace with hash -2016019680, now seen corresponding path program 1 times [2021-12-22 09:38:55,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:55,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030614334] [2021-12-22 09:38:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:55,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 486 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 09:38:56,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:56,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030614334] [2021-12-22 09:38:56,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030614334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:56,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:56,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 09:38:56,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654793704] [2021-12-22 09:38:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:56,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:38:56,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:38:56,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:38:56,018 INFO L87 Difference]: Start difference. First operand 36818 states and 41755 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2021-12-22 09:38:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:38:58,623 INFO L93 Difference]: Finished difference Result 99668 states and 112882 transitions. [2021-12-22 09:38:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:38:58,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 352 [2021-12-22 09:38:58,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:38:58,768 INFO L225 Difference]: With dead ends: 99668 [2021-12-22 09:38:58,769 INFO L226 Difference]: Without dead ends: 62852 [2021-12-22 09:38:58,830 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 [2021-12-22 09:38:58,834 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 818 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-22 09:38:58,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 199 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-22 09:38:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62852 states. [2021-12-22 09:38:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62852 to 57736. [2021-12-22 09:38:59,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57736 states, 57735 states have (on average 1.1359660517883432) internal successors, (65585), 57735 states have internal predecessors, (65585), 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) [2021-12-22 09:38:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57736 states to 57736 states and 65585 transitions. [2021-12-22 09:38:59,830 INFO L78 Accepts]: Start accepts. Automaton has 57736 states and 65585 transitions. Word has length 352 [2021-12-22 09:38:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:38:59,831 INFO L470 AbstractCegarLoop]: Abstraction has 57736 states and 65585 transitions. [2021-12-22 09:38:59,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2021-12-22 09:38:59,831 INFO L276 IsEmpty]: Start isEmpty. Operand 57736 states and 65585 transitions. [2021-12-22 09:38:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-12-22 09:38:59,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:38:59,835 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:38:59,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 09:38:59,836 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:38:59,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:38:59,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1812329600, now seen corresponding path program 1 times [2021-12-22 09:38:59,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:38:59,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295682955] [2021-12-22 09:38:59,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:38:59,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:38:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:38:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:38:59,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:38:59,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295682955] [2021-12-22 09:38:59,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295682955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:38:59,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:38:59,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:38:59,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186700902] [2021-12-22 09:38:59,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:38:59,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:38:59,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:38:59,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:38:59,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:38:59,951 INFO L87 Difference]: Start difference. First operand 57736 states and 65585 transitions. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 3 states have internal predecessors, (353), 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) [2021-12-22 09:39:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:39:02,372 INFO L93 Difference]: Finished difference Result 138521 states and 157086 transitions. [2021-12-22 09:39:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:39:02,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 3 states have internal predecessors, (353), 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 353 [2021-12-22 09:39:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:39:02,460 INFO L225 Difference]: With dead ends: 138521 [2021-12-22 09:39:02,461 INFO L226 Difference]: Without dead ends: 78658 [2021-12-22 09:39:02,498 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 [2021-12-22 09:39:02,498 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 559 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 09:39:02,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 354 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 09:39:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78658 states. [2021-12-22 09:39:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78658 to 77348. [2021-12-22 09:39:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77348 states, 77347 states have (on average 1.1266888179244186) internal successors, (87146), 77347 states have internal predecessors, (87146), 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) [2021-12-22 09:39:03,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77348 states to 77348 states and 87146 transitions. [2021-12-22 09:39:03,860 INFO L78 Accepts]: Start accepts. Automaton has 77348 states and 87146 transitions. Word has length 353 [2021-12-22 09:39:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:39:03,860 INFO L470 AbstractCegarLoop]: Abstraction has 77348 states and 87146 transitions. [2021-12-22 09:39:03,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 3 states have internal predecessors, (353), 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) [2021-12-22 09:39:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 77348 states and 87146 transitions. [2021-12-22 09:39:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-12-22 09:39:03,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:39:03,864 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-22 09:39:03,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 09:39:03,865 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:39:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:39:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash -426936410, now seen corresponding path program 1 times [2021-12-22 09:39:03,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:39:03,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833360517] [2021-12-22 09:39:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:03,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:39:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:39:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 311 proven. 82 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-22 09:39:04,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:39:04,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833360517] [2021-12-22 09:39:04,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833360517] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 09:39:04,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254816554] [2021-12-22 09:39:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:04,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:39:04,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:39:04,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 09:39:04,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 09:39:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:39:04,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-22 09:39:04,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 09:39:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 311 proven. 82 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-22 09:39:05,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 09:39:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 392 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-22 09:39:06,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254816554] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 09:39:06,350 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 09:39:06,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2021-12-22 09:39:06,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739273660] [2021-12-22 09:39:06,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 09:39:06,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 09:39:06,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:39:06,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 09:39:06,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-22 09:39:06,352 INFO L87 Difference]: Start difference. First operand 77348 states and 87146 transitions. Second operand has 10 states, 10 states have (on average 61.8) internal successors, (618), 9 states have internal predecessors, (618), 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) [2021-12-22 09:39:12,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:39:12,256 INFO L93 Difference]: Finished difference Result 172198 states and 193885 transitions. [2021-12-22 09:39:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 09:39:12,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 61.8) internal successors, (618), 9 states have internal predecessors, (618), 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 367 [2021-12-22 09:39:12,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:39:12,362 INFO L225 Difference]: With dead ends: 172198 [2021-12-22 09:39:12,363 INFO L226 Difference]: Without dead ends: 94852 [2021-12-22 09:39:12,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 728 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-12-22 09:39:12,384 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 2907 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 7003 mSolverCounterSat, 897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 7900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 897 IncrementalHoareTripleChecker+Valid, 7003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-22 09:39:12,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 496 Invalid, 7900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [897 Valid, 7003 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-22 09:39:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94852 states. [2021-12-22 09:39:13,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94852 to 82427. [2021-12-22 09:39:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82427 states, 82426 states have (on average 1.12079926236867) internal successors, (92383), 82426 states have internal predecessors, (92383), 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) [2021-12-22 09:39:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82427 states to 82427 states and 92383 transitions. [2021-12-22 09:39:13,798 INFO L78 Accepts]: Start accepts. Automaton has 82427 states and 92383 transitions. Word has length 367 [2021-12-22 09:39:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:39:13,798 INFO L470 AbstractCegarLoop]: Abstraction has 82427 states and 92383 transitions. [2021-12-22 09:39:13,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 61.8) internal successors, (618), 9 states have internal predecessors, (618), 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) [2021-12-22 09:39:13,799 INFO L276 IsEmpty]: Start isEmpty. Operand 82427 states and 92383 transitions. [2021-12-22 09:39:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-12-22 09:39:13,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:39:13,804 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-22 09:39:13,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 09:39:14,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:39:14,020 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:39:14,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:39:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash -473674346, now seen corresponding path program 1 times [2021-12-22 09:39:14,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:39:14,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320267921] [2021-12-22 09:39:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:14,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:39:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:39:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 551 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-12-22 09:39:14,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:39:14,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320267921] [2021-12-22 09:39:14,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320267921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:39:14,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:39:14,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:39:14,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314671909] [2021-12-22 09:39:14,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:39:14,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:39:14,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:39:14,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:39:14,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:39:14,178 INFO L87 Difference]: Start difference. First operand 82427 states and 92383 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2021-12-22 09:39:16,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:39:16,461 INFO L93 Difference]: Finished difference Result 189117 states and 212185 transitions. [2021-12-22 09:39:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:39:16,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 427 [2021-12-22 09:39:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:39:16,596 INFO L225 Difference]: With dead ends: 189117 [2021-12-22 09:39:16,597 INFO L226 Difference]: Without dead ends: 106690 [2021-12-22 09:39:16,631 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 [2021-12-22 09:39:16,632 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 438 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:39:16,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 352 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 09:39:16,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106690 states. [2021-12-22 09:39:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106690 to 101986. [2021-12-22 09:39:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101986 states, 101985 states have (on average 1.1074962004216307) internal successors, (112948), 101985 states have internal predecessors, (112948), 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) [2021-12-22 09:39:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101986 states to 101986 states and 112948 transitions. [2021-12-22 09:39:18,091 INFO L78 Accepts]: Start accepts. Automaton has 101986 states and 112948 transitions. Word has length 427 [2021-12-22 09:39:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:39:18,092 INFO L470 AbstractCegarLoop]: Abstraction has 101986 states and 112948 transitions. [2021-12-22 09:39:18,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2021-12-22 09:39:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 101986 states and 112948 transitions. [2021-12-22 09:39:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-12-22 09:39:18,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:39:18,097 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-22 09:39:18,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 09:39:18,097 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:39:18,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:39:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1546176435, now seen corresponding path program 1 times [2021-12-22 09:39:18,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:39:18,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408574749] [2021-12-22 09:39:18,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:18,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:39:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:39:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-12-22 09:39:18,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:39:18,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408574749] [2021-12-22 09:39:18,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408574749] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:39:18,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:39:18,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:39:18,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307735331] [2021-12-22 09:39:18,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:39:18,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:39:18,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:39:18,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:39:18,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:39:18,230 INFO L87 Difference]: Start difference. First operand 101986 states and 112948 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2021-12-22 09:39:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:39:20,538 INFO L93 Difference]: Finished difference Result 216327 states and 239212 transitions. [2021-12-22 09:39:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:39:20,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 449 [2021-12-22 09:39:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:39:20,709 INFO L225 Difference]: With dead ends: 216327 [2021-12-22 09:39:20,709 INFO L226 Difference]: Without dead ends: 114343 [2021-12-22 09:39:20,776 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 [2021-12-22 09:39:20,777 INFO L933 BasicCegarLoop]: 715 mSDtfsCounter, 335 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-22 09:39:20,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 768 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-22 09:39:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114343 states. [2021-12-22 09:39:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114343 to 110497. [2021-12-22 09:39:22,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110497 states, 110496 states have (on average 1.1011529829134086) internal successors, (121673), 110496 states have internal predecessors, (121673), 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) [2021-12-22 09:39:22,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110497 states to 110497 states and 121673 transitions. [2021-12-22 09:39:22,215 INFO L78 Accepts]: Start accepts. Automaton has 110497 states and 121673 transitions. Word has length 449 [2021-12-22 09:39:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:39:22,216 INFO L470 AbstractCegarLoop]: Abstraction has 110497 states and 121673 transitions. [2021-12-22 09:39:22,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2021-12-22 09:39:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 110497 states and 121673 transitions. [2021-12-22 09:39:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-12-22 09:39:22,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:39:22,223 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:39:22,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 09:39:22,223 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:39:22,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:39:22,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1080482528, now seen corresponding path program 1 times [2021-12-22 09:39:22,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:39:22,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095506303] [2021-12-22 09:39:22,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:22,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:39:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:39:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-12-22 09:39:22,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:39:22,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095506303] [2021-12-22 09:39:22,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095506303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:39:22,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:39:22,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:39:22,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396177498] [2021-12-22 09:39:22,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:39:22,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:39:22,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:39:22,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:39:22,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:39:22,385 INFO L87 Difference]: Start difference. First operand 110497 states and 121673 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2021-12-22 09:39:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:39:24,757 INFO L93 Difference]: Finished difference Result 231199 states and 254762 transitions. [2021-12-22 09:39:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:39:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 493 [2021-12-22 09:39:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:39:24,889 INFO L225 Difference]: With dead ends: 231199 [2021-12-22 09:39:24,890 INFO L226 Difference]: Without dead ends: 120704 [2021-12-22 09:39:24,911 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 [2021-12-22 09:39:24,912 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 496 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:39:24,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 704 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 09:39:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120704 states. [2021-12-22 09:39:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120704 to 120275. [2021-12-22 09:39:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120275 states, 120274 states have (on average 1.0958810715532867) internal successors, (131806), 120274 states have internal predecessors, (131806), 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) [2021-12-22 09:39:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120275 states to 120275 states and 131806 transitions. [2021-12-22 09:39:26,484 INFO L78 Accepts]: Start accepts. Automaton has 120275 states and 131806 transitions. Word has length 493 [2021-12-22 09:39:26,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:39:26,485 INFO L470 AbstractCegarLoop]: Abstraction has 120275 states and 131806 transitions. [2021-12-22 09:39:26,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2021-12-22 09:39:26,485 INFO L276 IsEmpty]: Start isEmpty. Operand 120275 states and 131806 transitions. [2021-12-22 09:39:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-12-22 09:39:26,492 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:39:26,492 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1] [2021-12-22 09:39:26,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 09:39:26,492 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:39:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:39:26,493 INFO L85 PathProgramCache]: Analyzing trace with hash 734154034, now seen corresponding path program 1 times [2021-12-22 09:39:26,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:39:26,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786490781] [2021-12-22 09:39:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:26,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:39:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:39:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-12-22 09:39:26,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:39:26,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786490781] [2021-12-22 09:39:26,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786490781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:39:26,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:39:26,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:39:26,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805175730] [2021-12-22 09:39:26,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:39:26,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:39:26,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:39:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:39:26,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:39:26,642 INFO L87 Difference]: Start difference. First operand 120275 states and 131806 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-12-22 09:39:28,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:39:28,822 INFO L93 Difference]: Finished difference Result 252467 states and 276673 transitions. [2021-12-22 09:39:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:39:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 499 [2021-12-22 09:39:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:39:29,009 INFO L225 Difference]: With dead ends: 252467 [2021-12-22 09:39:29,009 INFO L226 Difference]: Without dead ends: 131764 [2021-12-22 09:39:29,075 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 [2021-12-22 09:39:29,076 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 326 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 09:39:29,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 292 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 09:39:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131764 states. [2021-12-22 09:39:30,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131764 to 126220. [2021-12-22 09:39:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126220 states, 126219 states have (on average 1.0837433349971082) internal successors, (136789), 126219 states have internal predecessors, (136789), 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) [2021-12-22 09:39:30,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126220 states to 126220 states and 136789 transitions. [2021-12-22 09:39:30,695 INFO L78 Accepts]: Start accepts. Automaton has 126220 states and 136789 transitions. Word has length 499 [2021-12-22 09:39:30,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:39:30,695 INFO L470 AbstractCegarLoop]: Abstraction has 126220 states and 136789 transitions. [2021-12-22 09:39:30,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-12-22 09:39:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 126220 states and 136789 transitions. [2021-12-22 09:39:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2021-12-22 09:39:30,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:39:30,701 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:39:30,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 09:39:30,702 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:39:30,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:39:30,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1701285650, now seen corresponding path program 1 times [2021-12-22 09:39:30,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:39:30,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077355738] [2021-12-22 09:39:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:39:30,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:39:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 09:39:30,831 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 09:39:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 09:39:31,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 09:39:31,502 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 09:39:31,503 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 09:39:31,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 09:39:31,508 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:39:31,512 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 09:39:31,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 09:39:31 BoogieIcfgContainer [2021-12-22 09:39:31,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 09:39:31,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 09:39:31,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 09:39:31,676 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 09:39:31,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:38:33" (3/4) ... [2021-12-22 09:39:31,678 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-22 09:39:31,847 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 09:39:31,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 09:39:31,847 INFO L158 Benchmark]: Toolchain (without parser) took 62596.39ms. Allocated memory was 102.8MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 63.7MB in the beginning and 8.9GB in the end (delta: -8.8GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2021-12-22 09:39:31,848 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 09:39:31,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 856.76ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.4MB in the beginning and 73.9MB in the end (delta: -10.6MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2021-12-22 09:39:31,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 257.87ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 73.9MB in the beginning and 100.6MB in the end (delta: -26.7MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2021-12-22 09:39:31,849 INFO L158 Benchmark]: Boogie Preprocessor took 321.08ms. Allocated memory is still 178.3MB. Free memory was 100.6MB in the beginning and 76.2MB in the end (delta: 24.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-12-22 09:39:31,849 INFO L158 Benchmark]: RCFGBuilder took 2399.12ms. Allocated memory was 178.3MB in the beginning and 270.5MB in the end (delta: 92.3MB). Free memory was 76.2MB in the beginning and 114.7MB in the end (delta: -38.6MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2021-12-22 09:39:31,850 INFO L158 Benchmark]: TraceAbstraction took 58585.33ms. Allocated memory was 270.5MB in the beginning and 11.4GB in the end (delta: 11.2GB). Free memory was 113.7MB in the beginning and 8.9GB in the end (delta: -8.8GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2021-12-22 09:39:31,850 INFO L158 Benchmark]: Witness Printer took 171.38ms. Allocated memory is still 11.4GB. Free memory was 8.9GB in the beginning and 8.9GB in the end (delta: 61.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2021-12-22 09:39:31,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 856.76ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.4MB in the beginning and 73.9MB in the end (delta: -10.6MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 257.87ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 73.9MB in the beginning and 100.6MB in the end (delta: -26.7MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 321.08ms. Allocated memory is still 178.3MB. Free memory was 100.6MB in the beginning and 76.2MB in the end (delta: 24.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2399.12ms. Allocated memory was 178.3MB in the beginning and 270.5MB in the end (delta: 92.3MB). Free memory was 76.2MB in the beginning and 114.7MB in the end (delta: -38.6MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. * TraceAbstraction took 58585.33ms. Allocated memory was 270.5MB in the beginning and 11.4GB in the end (delta: 11.2GB). Free memory was 113.7MB in the beginning and 8.9GB in the end (delta: -8.8GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 171.38ms. Allocated memory is still 11.4GB. Free memory was 8.9GB in the beginning and 8.9GB in the end (delta: 61.2MB). Peak memory consumption was 62.9MB. 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 - CounterExampleResult [Line: 60]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int inputA = 1; [L19] int inputB = 2; [L20] int inputC = 3; [L21] int inputE = 5; [L22] int inputD = 4; [L23] int inputF = 6; [L26] int a24 = 1; [L27] int a21 = 124; [L28] int a26 = 222; [L29] int a14 = -79; [L30] int a28 = 111; VAL [a14=-79, a21=124, a24=1, a26=222, a28=111, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L2587] int output = -1; VAL [a14=-79, a21=124, a24=1, a26=222, a28=111, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6, output=-1] [L2590] COND TRUE 1 [L2593] int input; [L2594] input = __VERIFIER_nondet_int() [L2595] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L2598] CALL, EXPR calculate_output(input) [L35] COND FALSE !((((( ((-182 < a14) && (-114 >= a14)) && 217 < a26 ) && (a24==1)) && ((37 < a28) && (134 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L38] COND FALSE !((((( ((-182 < a14) && (-114 >= a14)) && ((124 < a26) && (217 >= a26)) ) && (a24==1)) && a28 <= 37 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L41] COND FALSE !((((( a14 <= -182 && ((124 < a26) && (217 >= a26)) ) && (a24==1)) && a28 <= 37 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L44] COND FALSE !((((( a14 <= -182 && 217 < a26 ) && (a24==1)) && 300 < a28 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L47] COND FALSE !((((( -84 < a14 && ((124 < a26) && (217 >= a26)) ) && (a24==1)) && 300 < a28 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L50] COND FALSE !((((( ((-114 < a14) && (-84 >= a14)) && 217 < a26 ) && (a24==1)) && a28 <= 37 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L53] COND FALSE !((((( ((-114 < a14) && (-84 >= a14)) && a26 <= -68 ) && (a24==1)) && ((134 < a28) && (300 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L56] COND FALSE !((((( ((-182 < a14) && (-114 >= a14)) && 217 < a26 ) && (a24==1)) && 300 < a28 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L59] COND FALSE !((((( ((-182 < a14) && (-114 >= a14)) && 217 < a26 ) && (a24==1)) && ((134 < a28) && (300 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L62] COND FALSE !((((( a14 <= -182 && 217 < a26 ) && (a24==1)) && ((134 < a28) && (300 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L65] COND FALSE !((((( a14 <= -182 && ((124 < a26) && (217 >= a26)) ) && (a24==1)) && ((134 < a28) && (300 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L68] COND FALSE !((((( ((-114 < a14) && (-84 >= a14)) && 217 < a26 ) && (a24==1)) && ((134 < a28) && (300 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L71] COND FALSE !((((( ((-182 < a14) && (-114 >= a14)) && ((124 < a26) && (217 >= a26)) ) && (a24==1)) && ((134 < a28) && (300 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L74] COND FALSE !((((( a14 <= -182 && ((124 < a26) && (217 >= a26)) ) && (a24==1)) && 300 < a28 ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L77] COND FALSE !((((( ((-182 < a14) && (-114 >= a14)) && a26 <= -68 ) && (a24==1)) && ((37 < a28) && (134 >= a28)) ) && a21 <= 127 )) VAL [\old(input)=6, a14=-79, a21=124, a24=1, a26=222, a28=111, input=6, inputA=1, inputB=2, inputC=3, inputD=4, inputE=5, inputF=6] [L80] COND FALSE !((((( ((-114 < a14) && (-84 >= a14)) && ((-68 < a26) && (124 >= a26)) ) && (a24==1)) && a28 <= 37 ) && a21 <= 127 ))