./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label50.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 37f79062fe3be0abf370e94726d24a3524d934123ef5393980d7efccb29185f4 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:50:38,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:50:38,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:50:38,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:50:38,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:50:38,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:50:38,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:50:38,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:50:38,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:50:38,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:50:38,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:50:38,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:50:38,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:50:38,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:50:38,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:50:38,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:50:38,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:50:38,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:50:38,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:50:38,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:50:38,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:50:38,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:50:38,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:50:38,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:50:38,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:50:38,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:50:38,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:50:38,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:50:38,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:50:38,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:50:38,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:50:38,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:50:38,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:50:38,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:50:38,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:50:38,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:50:38,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:50:38,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:50:38,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:50:38,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:50:38,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:50:38,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:50:38,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:50:38,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:50:38,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:50:38,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:50:38,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:50:38,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:50:38,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:50:38,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:50:38,844 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:50:38,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:50:38,845 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:50:38,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:50:38,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:50:38,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:50:38,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:50:38,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:50:38,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:50:38,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:50:38,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:50:38,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:50:38,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:50:38,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:50:38,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:50:38,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:50:38,849 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:50:38,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:50:38,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:50:38,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:50:38,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37f79062fe3be0abf370e94726d24a3524d934123ef5393980d7efccb29185f4 [2021-12-15 22:50:39,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:50:39,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:50:39,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:50:39,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:50:39,039 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:50:39,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2021-12-15 22:50:39,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360af68f5/6136b586fd5b478d8933f28411af033e/FLAG5f9c113c0 [2021-12-15 22:50:39,569 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:50:39,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2021-12-15 22:50:39,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360af68f5/6136b586fd5b478d8933f28411af033e/FLAG5f9c113c0 [2021-12-15 22:50:40,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360af68f5/6136b586fd5b478d8933f28411af033e [2021-12-15 22:50:40,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:50:40,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:50:40,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:50:40,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:50:40,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:50:40,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb61d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40, skipping insertion in model container [2021-12-15 22:50:40,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:50:40,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:50:40,286 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/Problem14_label50.c[3933,3946] [2021-12-15 22:50:40,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:50:40,400 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:50:40,418 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/Problem14_label50.c[3933,3946] [2021-12-15 22:50:40,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:50:40,488 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:50:40,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40 WrapperNode [2021-12-15 22:50:40,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:50:40,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:50:40,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:50:40,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:50:40,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,556 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-15 22:50:40,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:50:40,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:50:40,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:50:40,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:50:40,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:50:40,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:50:40,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:50:40,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:50:40,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (1/1) ... [2021-12-15 22:50:40,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:50:40,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:40,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 22:50:40,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 22:50:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:50:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:50:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:50:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:50:40,795 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:50:40,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:50:41,699 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:50:41,706 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:50:41,706 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:50:41,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:41 BoogieIcfgContainer [2021-12-15 22:50:41,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:50:41,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:50:41,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:50:41,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:50:41,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:50:40" (1/3) ... [2021-12-15 22:50:41,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dce90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:50:41, skipping insertion in model container [2021-12-15 22:50:41,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:40" (2/3) ... [2021-12-15 22:50:41,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dce90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:50:41, skipping insertion in model container [2021-12-15 22:50:41,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:41" (3/3) ... [2021-12-15 22:50:41,713 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2021-12-15 22:50:41,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:50:41,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:50:41,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:50:41,759 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:50:41,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:50:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:41,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-15 22:50:41,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:41,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:41,776 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2021-12-15 22:50:41,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:41,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738464677] [2021-12-15 22:50:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:41,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:50:41,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:41,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738464677] [2021-12-15 22:50:41,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738464677] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:41,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:50:41,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:50:41,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835786365] [2021-12-15 22:50:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:41,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:50:41,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:41,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:50:41,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:50:41,948 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:43,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:43,007 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2021-12-15 22:50:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:50:43,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-12-15 22:50:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:43,027 INFO L225 Difference]: With dead ends: 852 [2021-12-15 22:50:43,028 INFO L226 Difference]: Without dead ends: 538 [2021-12-15 22:50:43,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:50:43,040 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 558 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:43,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 44 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 22:50:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-15 22:50:43,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-12-15 22:50:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-12-15 22:50:43,089 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 37 [2021-12-15 22:50:43,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:43,089 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-12-15 22:50:43,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:43,090 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-12-15 22:50:43,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-15 22:50:43,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:43,095 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:50:43,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:50:43,096 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:43,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1421944847, now seen corresponding path program 1 times [2021-12-15 22:50:43,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:43,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970000653] [2021-12-15 22:50:43,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:43,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-15 22:50:43,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:43,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970000653] [2021-12-15 22:50:43,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970000653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:43,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:50:43,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:50:43,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80497008] [2021-12-15 22:50:43,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:43,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:50:43,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:43,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:50:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:50:43,186 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:43,764 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2021-12-15 22:50:43,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:50:43,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 185 [2021-12-15 22:50:43,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:43,773 INFO L225 Difference]: With dead ends: 1074 [2021-12-15 22:50:43,773 INFO L226 Difference]: Without dead ends: 716 [2021-12-15 22:50:43,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:50:43,775 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:43,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:50:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-15 22:50:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-12-15 22:50:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-12-15 22:50:43,802 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 185 [2021-12-15 22:50:43,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:43,804 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-12-15 22:50:43,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-12-15 22:50:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-15 22:50:43,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:43,817 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:50:43,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:50:43,817 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:43,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:43,818 INFO L85 PathProgramCache]: Analyzing trace with hash 292011490, now seen corresponding path program 1 times [2021-12-15 22:50:43,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:43,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971303215] [2021-12-15 22:50:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:43,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:43,951 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 22:50:43,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:43,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971303215] [2021-12-15 22:50:43,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971303215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:43,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:50:43,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:50:43,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423459916] [2021-12-15 22:50:43,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:43,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:50:43,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:43,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:50:43,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:50:43,954 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:44,529 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2021-12-15 22:50:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:50:44,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 208 [2021-12-15 22:50:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:44,533 INFO L225 Difference]: With dead ends: 1637 [2021-12-15 22:50:44,534 INFO L226 Difference]: Without dead ends: 1072 [2021-12-15 22:50:44,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:50:44,536 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 112 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:44,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 113 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:50:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-12-15 22:50:44,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-12-15 22:50:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2021-12-15 22:50:44,549 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 208 [2021-12-15 22:50:44,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:44,549 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2021-12-15 22:50:44,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2021-12-15 22:50:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-12-15 22:50:44,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:44,553 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:44,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:50:44,554 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:44,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1977723078, now seen corresponding path program 1 times [2021-12-15 22:50:44,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:44,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598882881] [2021-12-15 22:50:44,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:44,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-15 22:50:44,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:44,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598882881] [2021-12-15 22:50:44,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598882881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:44,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:50:44,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:50:44,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561817189] [2021-12-15 22:50:44,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:44,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:50:44,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:44,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:50:44,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:50:44,714 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:45,317 INFO L93 Difference]: Finished difference Result 2142 states and 2597 transitions. [2021-12-15 22:50:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:50:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 339 [2021-12-15 22:50:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:45,322 INFO L225 Difference]: With dead ends: 2142 [2021-12-15 22:50:45,322 INFO L226 Difference]: Without dead ends: 1428 [2021-12-15 22:50:45,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:50:45,323 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:45,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 76 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:50:45,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2021-12-15 22:50:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2021-12-15 22:50:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.142957252978276) internal successors, (1631), 1427 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1631 transitions. [2021-12-15 22:50:45,356 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1631 transitions. Word has length 339 [2021-12-15 22:50:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:45,357 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1631 transitions. [2021-12-15 22:50:45,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1631 transitions. [2021-12-15 22:50:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-12-15 22:50:45,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:45,365 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-15 22:50:45,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:50:45,365 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:45,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:45,366 INFO L85 PathProgramCache]: Analyzing trace with hash 657490942, now seen corresponding path program 1 times [2021-12-15 22:50:45,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:45,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458742656] [2021-12-15 22:50:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:45,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 332 proven. 23 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-15 22:50:45,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:45,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458742656] [2021-12-15 22:50:45,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458742656] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:45,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595750561] [2021-12-15 22:50:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:45,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:45,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:45,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:50:45,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:50:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:45,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:50:45,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-12-15 22:50:46,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:50:46,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595750561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:46,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:50:46,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:50:46,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935627025] [2021-12-15 22:50:46,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:46,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:50:46,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:46,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:50:46,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:46,117 INFO L87 Difference]: Start difference. First operand 1428 states and 1631 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:46,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:46,558 INFO L93 Difference]: Finished difference Result 3388 states and 3946 transitions. [2021-12-15 22:50:46,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:50:46,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2021-12-15 22:50:46,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:46,564 INFO L225 Difference]: With dead ends: 3388 [2021-12-15 22:50:46,564 INFO L226 Difference]: Without dead ends: 2140 [2021-12-15 22:50:46,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:46,566 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 144 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:46,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:50:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-12-15 22:50:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2021-12-15 22:50:46,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1274859765425804) internal successors, (2211), 1961 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2211 transitions. [2021-12-15 22:50:46,595 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2211 transitions. Word has length 363 [2021-12-15 22:50:46,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:46,600 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2211 transitions. [2021-12-15 22:50:46,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2211 transitions. [2021-12-15 22:50:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-12-15 22:50:46,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:46,605 INFO L514 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:46,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 22:50:46,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:46,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:46,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:46,824 INFO L85 PathProgramCache]: Analyzing trace with hash 708625393, now seen corresponding path program 1 times [2021-12-15 22:50:46,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:46,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415268862] [2021-12-15 22:50:46,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:46,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 527 proven. 23 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-15 22:50:46,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:46,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415268862] [2021-12-15 22:50:46,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415268862] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:46,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505875757] [2021-12-15 22:50:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:46,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:46,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:46,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:50:47,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:50:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:47,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:50:47,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2021-12-15 22:50:47,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:50:47,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505875757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:47,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:50:47,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:50:47,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661801542] [2021-12-15 22:50:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:47,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:50:47,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:50:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:47,618 INFO L87 Difference]: Start difference. First operand 1962 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:48,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:48,034 INFO L93 Difference]: Finished difference Result 4456 states and 5106 transitions. [2021-12-15 22:50:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:50:48,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 462 [2021-12-15 22:50:48,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:48,041 INFO L225 Difference]: With dead ends: 4456 [2021-12-15 22:50:48,041 INFO L226 Difference]: Without dead ends: 2674 [2021-12-15 22:50:48,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:48,047 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 144 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:48,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 245 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:50:48,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-12-15 22:50:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-12-15 22:50:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1230460921843688) internal successors, (2802), 2495 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2802 transitions. [2021-12-15 22:50:48,080 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2802 transitions. Word has length 462 [2021-12-15 22:50:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:48,080 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2802 transitions. [2021-12-15 22:50:48,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2802 transitions. [2021-12-15 22:50:48,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-12-15 22:50:48,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:48,087 INFO L514 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-15 22:50:48,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:50:48,295 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,SelfDestructingSolverStorable5 [2021-12-15 22:50:48,296 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:48,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1963758306, now seen corresponding path program 1 times [2021-12-15 22:50:48,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:48,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823415480] [2021-12-15 22:50:48,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:48,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 565 proven. 23 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-12-15 22:50:48,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:48,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823415480] [2021-12-15 22:50:48,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823415480] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:48,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547959587] [2021-12-15 22:50:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:48,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:48,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:48,485 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) [2021-12-15 22:50:48,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 22:50:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:48,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:50:48,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2021-12-15 22:50:49,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:50:49,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547959587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:49,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:50:49,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:50:49,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110891509] [2021-12-15 22:50:49,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:49,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:50:49,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:49,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:50:49,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:49,091 INFO L87 Difference]: Start difference. First operand 2496 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:49,505 INFO L93 Difference]: Finished difference Result 4812 states and 5423 transitions. [2021-12-15 22:50:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:50:49,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 481 [2021-12-15 22:50:49,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:49,511 INFO L225 Difference]: With dead ends: 4812 [2021-12-15 22:50:49,511 INFO L226 Difference]: Without dead ends: 2496 [2021-12-15 22:50:49,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:49,515 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 147 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:49,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 199 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:50:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-15 22:50:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2140. [2021-12-15 22:50:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1187470780738662) internal successors, (2393), 2139 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2393 transitions. [2021-12-15 22:50:49,543 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2393 transitions. Word has length 481 [2021-12-15 22:50:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:49,544 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2393 transitions. [2021-12-15 22:50:49,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2393 transitions. [2021-12-15 22:50:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-12-15 22:50:49,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:49,551 INFO L514 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-15 22:50:49,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 22:50:49,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:49,769 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1849096225, now seen corresponding path program 1 times [2021-12-15 22:50:49,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:49,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983713555] [2021-12-15 22:50:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:49,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 584 proven. 23 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-12-15 22:50:49,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:49,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983713555] [2021-12-15 22:50:49,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983713555] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:49,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902862197] [2021-12-15 22:50:49,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:49,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:49,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:49,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:50:49,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 22:50:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:49,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:50:49,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-12-15 22:50:50,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:50:50,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902862197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:50,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:50:50,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:50:50,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556295907] [2021-12-15 22:50:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:50,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:50:50,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:50:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:50:50,795 INFO L87 Difference]: Start difference. First operand 2140 states and 2393 transitions. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:51,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:51,423 INFO L93 Difference]: Finished difference Result 4634 states and 5207 transitions. [2021-12-15 22:50:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:50:51,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 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 495 [2021-12-15 22:50:51,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:51,431 INFO L225 Difference]: With dead ends: 4634 [2021-12-15 22:50:51,431 INFO L226 Difference]: Without dead ends: 2496 [2021-12-15 22:50:51,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:50:51,435 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 211 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:51,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 51 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:50:51,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-15 22:50:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2021-12-15 22:50:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1152352179542513) internal successors, (2584), 2317 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2584 transitions. [2021-12-15 22:50:51,467 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2584 transitions. Word has length 495 [2021-12-15 22:50:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:51,468 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2584 transitions. [2021-12-15 22:50:51,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2584 transitions. [2021-12-15 22:50:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-12-15 22:50:51,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:51,472 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:51,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 22:50:51,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:51,689 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:51,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:51,690 INFO L85 PathProgramCache]: Analyzing trace with hash 43185610, now seen corresponding path program 1 times [2021-12-15 22:50:51,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:51,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967707772] [2021-12-15 22:50:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:51,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 742 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-12-15 22:50:51,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:51,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967707772] [2021-12-15 22:50:51,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967707772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:51,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:50:51,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:50:51,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123626135] [2021-12-15 22:50:51,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:51,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:50:51,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:51,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:50:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:50:51,813 INFO L87 Difference]: Start difference. First operand 2318 states and 2584 transitions. Second operand has 4 states, 4 states have (on average 64.25) 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) [2021-12-15 22:50:52,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:52,287 INFO L93 Difference]: Finished difference Result 4485 states and 5016 transitions. [2021-12-15 22:50:52,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:50:52,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) 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 551 [2021-12-15 22:50:52,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:52,293 INFO L225 Difference]: With dead ends: 4485 [2021-12-15 22:50:52,293 INFO L226 Difference]: Without dead ends: 2318 [2021-12-15 22:50:52,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:50:52,297 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:52,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:50:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-12-15 22:50:52,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-12-15 22:50:52,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0845921450151057) internal successors, (2513), 2317 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2513 transitions. [2021-12-15 22:50:52,324 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2513 transitions. Word has length 551 [2021-12-15 22:50:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:52,325 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2513 transitions. [2021-12-15 22:50:52,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) 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) [2021-12-15 22:50:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2513 transitions. [2021-12-15 22:50:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2021-12-15 22:50:52,329 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:52,330 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:52,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:50:52,330 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:52,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1890446935, now seen corresponding path program 1 times [2021-12-15 22:50:52,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:52,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323781581] [2021-12-15 22:50:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:52,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 868 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:52,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:52,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323781581] [2021-12-15 22:50:52,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323781581] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:52,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568282883] [2021-12-15 22:50:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:52,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:52,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:52,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:50:52,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 22:50:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:52,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 22:50:52,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:54,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:50:54,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568282883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:54,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:50:54,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-12-15 22:50:54,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293421275] [2021-12-15 22:50:54,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:54,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 22:50:54,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 22:50:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-15 22:50:54,725 INFO L87 Difference]: Start difference. First operand 2318 states and 2513 transitions. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:55,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:55,319 INFO L93 Difference]: Finished difference Result 4456 states and 4845 transitions. [2021-12-15 22:50:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:50:55,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 4 states have internal predecessors, (335), 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 577 [2021-12-15 22:50:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:55,325 INFO L225 Difference]: With dead ends: 4456 [2021-12-15 22:50:55,326 INFO L226 Difference]: Without dead ends: 2318 [2021-12-15 22:50:55,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-15 22:50:55,328 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 333 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:55,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 51 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:50:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-12-15 22:50:55,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-12-15 22:50:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0799438990182328) internal successors, (2310), 2139 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2310 transitions. [2021-12-15 22:50:55,356 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2310 transitions. Word has length 577 [2021-12-15 22:50:55,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:55,357 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2310 transitions. [2021-12-15 22:50:55,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:55,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2310 transitions. [2021-12-15 22:50:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-12-15 22:50:55,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:55,362 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:55,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 22:50:55,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-15 22:50:55,580 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:55,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:55,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2022748667, now seen corresponding path program 1 times [2021-12-15 22:50:55,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:55,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44038791] [2021-12-15 22:50:55,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:55,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 807 proven. 93 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:55,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:55,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44038791] [2021-12-15 22:50:55,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44038791] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:55,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73079109] [2021-12-15 22:50:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:55,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:55,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:55,772 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:50:55,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 22:50:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:55,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:50:55,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:56,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:56,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:50:56,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73079109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:50:56,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:50:56,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:50:56,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642841860] [2021-12-15 22:50:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:50:56,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:50:56,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:50:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:56,553 INFO L87 Difference]: Start difference. First operand 2140 states and 2310 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:56,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:50:56,970 INFO L93 Difference]: Finished difference Result 5168 states and 5623 transitions. [2021-12-15 22:50:56,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:50:56,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 651 [2021-12-15 22:50:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:50:56,978 INFO L225 Difference]: With dead ends: 5168 [2021-12-15 22:50:56,978 INFO L226 Difference]: Without dead ends: 3208 [2021-12-15 22:50:56,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:56,981 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:50:56,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:50:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-15 22:50:57,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2021-12-15 22:50:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0739008419083256) internal successors, (3444), 3207 states have internal predecessors, (3444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:57,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3444 transitions. [2021-12-15 22:50:57,014 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3444 transitions. Word has length 651 [2021-12-15 22:50:57,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:50:57,014 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3444 transitions. [2021-12-15 22:50:57,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:50:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3444 transitions. [2021-12-15 22:50:57,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2021-12-15 22:50:57,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:50:57,021 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:50:57,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-15 22:50:57,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:57,236 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:50:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:50:57,236 INFO L85 PathProgramCache]: Analyzing trace with hash -253890537, now seen corresponding path program 1 times [2021-12-15 22:50:57,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:50:57,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30426911] [2021-12-15 22:50:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:57,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:50:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:57,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:50:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30426911] [2021-12-15 22:50:57,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30426911] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:50:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003456545] [2021-12-15 22:50:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:50:57,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:50:57,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:50:57,452 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:50:57,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-15 22:50:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:50:57,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:50:57,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:50:58,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:58,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 22:50:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-12-15 22:50:59,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003456545] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 22:50:59,210 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 22:50:59,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 22:50:59,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594880254] [2021-12-15 22:50:59,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 22:50:59,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 22:50:59,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:50:59,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 22:50:59,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:50:59,212 INFO L87 Difference]: Start difference. First operand 3208 states and 3444 transitions. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:00,045 INFO L93 Difference]: Finished difference Result 7660 states and 8253 transitions. [2021-12-15 22:51:00,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 22:51:00,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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 806 [2021-12-15 22:51:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:00,059 INFO L225 Difference]: With dead ends: 7660 [2021-12-15 22:51:00,059 INFO L226 Difference]: Without dead ends: 4632 [2021-12-15 22:51:00,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1610 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:00,065 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 56 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:00,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 65 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 22:51:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-15 22:51:00,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 3920. [2021-12-15 22:51:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.076805307476397) internal successors, (4220), 3919 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4220 transitions. [2021-12-15 22:51:00,128 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4220 transitions. Word has length 806 [2021-12-15 22:51:00,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:00,129 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4220 transitions. [2021-12-15 22:51:00,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4220 transitions. [2021-12-15 22:51:00,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2021-12-15 22:51:00,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:00,148 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:00,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:00,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:00,367 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash -685925002, now seen corresponding path program 1 times [2021-12-15 22:51:00,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:00,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212366139] [2021-12-15 22:51:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:00,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2021-12-15 22:51:00,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:00,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212366139] [2021-12-15 22:51:00,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212366139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:00,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:00,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:00,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38037823] [2021-12-15 22:51:00,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:00,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:00,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:00,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:00,601 INFO L87 Difference]: Start difference. First operand 3920 states and 4220 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:00,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:00,878 INFO L93 Difference]: Finished difference Result 8194 states and 8877 transitions. [2021-12-15 22:51:00,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:00,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 878 [2021-12-15 22:51:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:00,888 INFO L225 Difference]: With dead ends: 8194 [2021-12-15 22:51:00,892 INFO L226 Difference]: Without dead ends: 4454 [2021-12-15 22:51:00,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:00,910 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:00,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 32 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:00,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-12-15 22:51:00,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2021-12-15 22:51:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0779249943858074) internal successors, (4800), 4453 states have internal predecessors, (4800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4800 transitions. [2021-12-15 22:51:00,963 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4800 transitions. Word has length 878 [2021-12-15 22:51:00,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:00,963 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4800 transitions. [2021-12-15 22:51:00,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4800 transitions. [2021-12-15 22:51:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2021-12-15 22:51:00,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:00,971 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 22:51:00,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 22:51:00,971 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:00,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:00,973 INFO L85 PathProgramCache]: Analyzing trace with hash -32320893, now seen corresponding path program 1 times [2021-12-15 22:51:00,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:00,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592767522] [2021-12-15 22:51:00,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:00,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1590 proven. 93 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-12-15 22:51:01,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:01,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592767522] [2021-12-15 22:51:01,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592767522] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:01,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816170564] [2021-12-15 22:51:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:01,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:01,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:01,223 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:51:01,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-15 22:51:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:01,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:51:01,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-12-15 22:51:02,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:51:02,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816170564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:02,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:51:02,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:51:02,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944833442] [2021-12-15 22:51:02,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:02,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:02,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:02,573 INFO L87 Difference]: Start difference. First operand 4454 states and 4800 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:02,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:02,856 INFO L93 Difference]: Finished difference Result 9262 states and 9962 transitions. [2021-12-15 22:51:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:02,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 896 [2021-12-15 22:51:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:02,869 INFO L225 Difference]: With dead ends: 9262 [2021-12-15 22:51:02,870 INFO L226 Difference]: Without dead ends: 4988 [2021-12-15 22:51:02,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:02,876 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:02,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:02,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-12-15 22:51:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2021-12-15 22:51:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0755776290218095) internal successors, (4981), 4631 states have internal predecessors, (4981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4981 transitions. [2021-12-15 22:51:02,920 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4981 transitions. Word has length 896 [2021-12-15 22:51:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:02,921 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4981 transitions. [2021-12-15 22:51:02,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4981 transitions. [2021-12-15 22:51:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2021-12-15 22:51:02,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:02,930 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 22:51:02,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:03,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-15 22:51:03,149 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:03,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:03,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1437208854, now seen corresponding path program 1 times [2021-12-15 22:51:03,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:03,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750751114] [2021-12-15 22:51:03,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:03,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2021-12-15 22:51:03,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:03,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750751114] [2021-12-15 22:51:03,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750751114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:03,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:03,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:03,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577171521] [2021-12-15 22:51:03,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:03,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:03,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:03,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:03,425 INFO L87 Difference]: Start difference. First operand 4632 states and 4981 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:03,817 INFO L93 Difference]: Finished difference Result 9084 states and 9781 transitions. [2021-12-15 22:51:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:03,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 973 [2021-12-15 22:51:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:03,831 INFO L225 Difference]: With dead ends: 9084 [2021-12-15 22:51:03,831 INFO L226 Difference]: Without dead ends: 4632 [2021-12-15 22:51:03,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:03,837 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 64 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:03,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 227 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:03,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-15 22:51:03,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-12-15 22:51:03,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0624055279637228) internal successors, (4920), 4631 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4920 transitions. [2021-12-15 22:51:03,883 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4920 transitions. Word has length 973 [2021-12-15 22:51:03,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:03,884 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4920 transitions. [2021-12-15 22:51:03,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4920 transitions. [2021-12-15 22:51:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2021-12-15 22:51:03,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:03,896 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 22:51:03,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 22:51:03,896 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash 659097908, now seen corresponding path program 1 times [2021-12-15 22:51:03,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142040921] [2021-12-15 22:51:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:03,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-12-15 22:51:04,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:04,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142040921] [2021-12-15 22:51:04,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142040921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:04,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:04,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:04,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480315669] [2021-12-15 22:51:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:04,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:04,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:04,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:04,158 INFO L87 Difference]: Start difference. First operand 4632 states and 4920 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:04,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:04,482 INFO L93 Difference]: Finished difference Result 9084 states and 9659 transitions. [2021-12-15 22:51:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:04,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 1048 [2021-12-15 22:51:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:04,497 INFO L225 Difference]: With dead ends: 9084 [2021-12-15 22:51:04,497 INFO L226 Difference]: Without dead ends: 4632 [2021-12-15 22:51:04,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:04,501 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:04,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 240 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:04,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-12-15 22:51:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-12-15 22:51:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0503131073202332) internal successors, (4864), 4631 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:04,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4864 transitions. [2021-12-15 22:51:04,544 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4864 transitions. Word has length 1048 [2021-12-15 22:51:04,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:04,545 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4864 transitions. [2021-12-15 22:51:04,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:04,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4864 transitions. [2021-12-15 22:51:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2021-12-15 22:51:04,556 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:04,557 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:04,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 22:51:04,557 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1358554948, now seen corresponding path program 1 times [2021-12-15 22:51:04,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:04,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820487956] [2021-12-15 22:51:04,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:04,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2021-12-15 22:51:04,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:04,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820487956] [2021-12-15 22:51:04,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820487956] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:04,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444192007] [2021-12-15 22:51:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:04,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:04,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:04,831 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:51:04,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-15 22:51:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:05,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-15 22:51:05,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2459 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2021-12-15 22:51:06,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:51:06,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444192007] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:06,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:51:06,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-12-15 22:51:06,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947407869] [2021-12-15 22:51:06,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:06,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:51:06,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:06,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:51:06,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:51:06,421 INFO L87 Difference]: Start difference. First operand 4632 states and 4864 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:06,988 INFO L93 Difference]: Finished difference Result 10152 states and 10684 transitions. [2021-12-15 22:51:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:51:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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 1096 [2021-12-15 22:51:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:06,996 INFO L225 Difference]: With dead ends: 10152 [2021-12-15 22:51:06,996 INFO L226 Difference]: Without dead ends: 5700 [2021-12-15 22:51:06,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:51:07,000 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 69 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:07,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 42 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:51:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-12-15 22:51:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2021-12-15 22:51:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0484746397155156) internal successors, (5602), 5343 states have internal predecessors, (5602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5602 transitions. [2021-12-15 22:51:07,068 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5602 transitions. Word has length 1096 [2021-12-15 22:51:07,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:07,069 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5602 transitions. [2021-12-15 22:51:07,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5602 transitions. [2021-12-15 22:51:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2021-12-15 22:51:07,091 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:07,092 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:07,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:07,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-15 22:51:07,306 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash -10639510, now seen corresponding path program 1 times [2021-12-15 22:51:07,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734632615] [2021-12-15 22:51:07,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:07,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5871 backedges. 3738 proven. 0 refuted. 0 times theorem prover too weak. 2133 trivial. 0 not checked. [2021-12-15 22:51:07,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:07,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734632615] [2021-12-15 22:51:07,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734632615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:07,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:07,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:51:07,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225441689] [2021-12-15 22:51:07,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:07,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:51:07,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:07,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:51:07,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:07,621 INFO L87 Difference]: Start difference. First operand 5344 states and 5602 transitions. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:08,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:08,188 INFO L93 Difference]: Finished difference Result 10686 states and 11220 transitions. [2021-12-15 22:51:08,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:51:08,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 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 1336 [2021-12-15 22:51:08,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:08,195 INFO L225 Difference]: With dead ends: 10686 [2021-12-15 22:51:08,195 INFO L226 Difference]: Without dead ends: 5522 [2021-12-15 22:51:08,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:08,200 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 129 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:08,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 214 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:51:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-12-15 22:51:08,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2021-12-15 22:51:08,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0413625304136254) internal successors, (5564), 5343 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5564 transitions. [2021-12-15 22:51:08,273 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5564 transitions. Word has length 1336 [2021-12-15 22:51:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:08,274 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5564 transitions. [2021-12-15 22:51:08,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:08,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5564 transitions. [2021-12-15 22:51:08,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2021-12-15 22:51:08,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:08,294 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:08,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 22:51:08,294 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:08,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:08,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2052479464, now seen corresponding path program 1 times [2021-12-15 22:51:08,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:08,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198831992] [2021-12-15 22:51:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:08,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 4297 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-12-15 22:51:08,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:08,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198831992] [2021-12-15 22:51:08,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198831992] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:08,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777552106] [2021-12-15 22:51:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:08,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:08,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:08,828 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:51:08,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-15 22:51:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:09,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1992 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 22:51:09,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3486 proven. 438 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-12-15 22:51:12,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 22:51:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3591 proven. 333 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-12-15 22:51:13,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777552106] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 22:51:13,913 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 22:51:13,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2021-12-15 22:51:13,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131619902] [2021-12-15 22:51:13,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 22:51:13,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-15 22:51:13,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:13,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-15 22:51:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-12-15 22:51:13,915 INFO L87 Difference]: Start difference. First operand 5344 states and 5564 transitions. Second operand has 15 states, 15 states have (on average 106.13333333333334) internal successors, (1592), 15 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:18,109 INFO L93 Difference]: Finished difference Result 15222 states and 15918 transitions. [2021-12-15 22:51:18,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-15 22:51:18,110 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 106.13333333333334) internal successors, (1592), 15 states have internal predecessors, (1592), 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 1633 [2021-12-15 22:51:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:18,112 INFO L225 Difference]: With dead ends: 15222 [2021-12-15 22:51:18,112 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:51:18,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3301 GetRequests, 3275 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2021-12-15 22:51:18,123 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 1371 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7570 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 9611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 7570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1647 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:18,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1371 Valid, 163 Invalid, 9611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 7570 Invalid, 0 Unknown, 1647 Unchecked, 3.9s Time] [2021-12-15 22:51:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:51:18,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:51:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:51:18,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1633 [2021-12-15 22:51:18,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:18,124 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:51:18,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 106.13333333333334) internal successors, (1592), 15 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:51:18,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:51:18,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:51:18,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:18,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:18,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-15 22:51:19,517 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-15 22:51:19,518 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-15 22:51:19,519 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-15 22:51:19,520 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-15 22:51:19,521 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-15 22:51:19,522 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,523 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,524 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,525 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (* ~a12~0 9))) (let ((.cse4 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6)) (.cse0 (<= (div .cse6 10) 546134)) (.cse5 (<= 8 ~a21~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a21~0 7))) (or (and (<= 9 ~a15~0) .cse0 .cse1 (<= 7 ~a21~0) .cse2) (and .cse3 .cse0 .cse4 .cse1) (and .cse4 .cse1 (<= ~a12~0 80) .cse5) (and (<= 10 ~a21~0) .cse0 .cse1) (and .cse3 .cse4 (<= (+ ~a12~0 43) 0)) (and .cse0 .cse1 (< 80 ~a12~0) (<= 9 ~a21~0)) (and (<= (div (+ .cse6 858807) 10) 546134) .cse3 .cse1) (and .cse0 .cse1 .cse5 (<= ~a21~0 8)) (and .cse1 (<= ~a12~0 11) .cse2) (and (<= ~a12~0 71) .cse1 (< 18 ~a12~0) (not (= ~a15~0 7)) .cse2)))) [2021-12-15 22:51:19,525 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-15 22:51:19,526 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (* ~a12~0 9))) (let ((.cse4 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6)) (.cse0 (<= (div .cse6 10) 546134)) (.cse5 (<= 8 ~a21~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a21~0 7))) (or (and (<= 9 ~a15~0) .cse0 .cse1 (<= 7 ~a21~0) .cse2) (and .cse3 .cse0 .cse4 .cse1) (and .cse4 .cse1 (<= ~a12~0 80) .cse5) (and (<= 10 ~a21~0) .cse0 .cse1) (and .cse3 .cse4 (<= (+ ~a12~0 43) 0)) (and .cse0 .cse1 (< 80 ~a12~0) (<= 9 ~a21~0)) (and (<= (div (+ .cse6 858807) 10) 546134) .cse3 .cse1) (and .cse0 .cse1 .cse5 (<= ~a21~0 8)) (and .cse1 (<= ~a12~0 11) .cse2) (and (<= ~a12~0 71) .cse1 (< 18 ~a12~0) (not (= ~a15~0 7)) .cse2)))) [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-15 22:51:19,527 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-15 22:51:19,528 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-15 22:51:19,528 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-15 22:51:19,530 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:19,530 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:51:19,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:51:19 BoogieIcfgContainer [2021-12-15 22:51:19,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:51:19,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:51:19,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:51:19,559 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:51:19,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:41" (3/4) ... [2021-12-15 22:51:19,560 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:51:19,585 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:51:19,586 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:51:19,586 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:51:19,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:51:19,663 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:51:19,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:51:19,664 INFO L158 Benchmark]: Toolchain (without parser) took 39591.47ms. Allocated memory was 96.5MB in the beginning and 641.7MB in the end (delta: 545.3MB). Free memory was 62.5MB in the beginning and 492.2MB in the end (delta: -429.7MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,664 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 53.3MB in the beginning and 53.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:51:19,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.99ms. Allocated memory is still 96.5MB. Free memory was 62.3MB in the beginning and 50.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.93ms. Allocated memory is still 96.5MB. Free memory was 49.7MB in the beginning and 40.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,668 INFO L158 Benchmark]: Boogie Preprocessor took 114.65ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 40.1MB in the beginning and 89.8MB in the end (delta: -49.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,668 INFO L158 Benchmark]: RCFGBuilder took 1028.65ms. Allocated memory is still 121.6MB. Free memory was 89.8MB in the beginning and 65.1MB in the end (delta: 24.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,668 INFO L158 Benchmark]: TraceAbstraction took 37849.24ms. Allocated memory was 121.6MB in the beginning and 641.7MB in the end (delta: 520.1MB). Free memory was 64.3MB in the beginning and 511.1MB in the end (delta: -446.8MB). Peak memory consumption was 403.1MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,668 INFO L158 Benchmark]: Witness Printer took 105.17ms. Allocated memory is still 641.7MB. Free memory was 511.1MB in the beginning and 492.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 22:51:19,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 53.3MB in the beginning and 53.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.99ms. Allocated memory is still 96.5MB. Free memory was 62.3MB in the beginning and 50.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.93ms. Allocated memory is still 96.5MB. Free memory was 49.7MB in the beginning and 40.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.65ms. Allocated memory was 96.5MB in the beginning and 121.6MB in the end (delta: 25.2MB). Free memory was 40.1MB in the beginning and 89.8MB in the end (delta: -49.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1028.65ms. Allocated memory is still 121.6MB. Free memory was 89.8MB in the beginning and 65.1MB in the end (delta: 24.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * TraceAbstraction took 37849.24ms. Allocated memory was 121.6MB in the beginning and 641.7MB in the end (delta: 520.1MB). Free memory was 64.3MB in the beginning and 511.1MB in the end (delta: -446.8MB). Peak memory consumption was 403.1MB. Max. memory is 16.1GB. * Witness Printer took 105.17ms. Allocated memory is still 641.7MB. Free memory was 511.1MB in the beginning and 492.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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 - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.8s, OverallIterations: 19, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3867 SdHoareTripleChecker+Valid, 12.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3867 mSDsluCounter, 2218 SdHoareTripleChecker+Invalid, 10.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1647 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 2056 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18023 IncrementalHoareTripleChecker+Invalid, 21726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2056 mSolverCounterUnsat, 1962 mSDtfsCounter, 18023 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9989 GetRequests, 9909 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5344occurred in iteration=17, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 2848 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 130 NumberOfFragments, 309 HoareAnnotationTreeSize, 3 FomulaSimplifications, 692 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 5364 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 20475 NumberOfCodeBlocks, 20475 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 22883 ConstructedInterpolants, 35 QuantifiedInterpolants, 71043 SizeOfPredicates, 2 NumberOfNonLiveVariables, 9432 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 67987/70172 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((9 <= a15 && a12 * 9 / 10 <= 546134) && a24 == 1) && 7 <= a21) && a21 <= 7) || (((a21 <= 6 && a12 * 9 / 10 <= 546134) && a15 <= 8) && a24 == 1)) || (((a15 <= 8 && a24 == 1) && a12 <= 80) && 8 <= a21)) || ((10 <= a21 && a12 * 9 / 10 <= 546134) && a24 == 1)) || ((a21 <= 6 && a15 <= 8) && a12 + 43 <= 0)) || (((a12 * 9 / 10 <= 546134 && a24 == 1) && 80 < a12) && 9 <= a21)) || (((a12 * 9 + 858807) / 10 <= 546134 && a21 <= 6) && a24 == 1)) || (((a12 * 9 / 10 <= 546134 && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((a24 == 1 && a12 <= 11) && a21 <= 7)) || ((((a12 <= 71 && a24 == 1) && 18 < a12) && !(a15 == 7)) && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((9 <= a15 && a12 * 9 / 10 <= 546134) && a24 == 1) && 7 <= a21) && a21 <= 7) || (((a21 <= 6 && a12 * 9 / 10 <= 546134) && a15 <= 8) && a24 == 1)) || (((a15 <= 8 && a24 == 1) && a12 <= 80) && 8 <= a21)) || ((10 <= a21 && a12 * 9 / 10 <= 546134) && a24 == 1)) || ((a21 <= 6 && a15 <= 8) && a12 + 43 <= 0)) || (((a12 * 9 / 10 <= 546134 && a24 == 1) && 80 < a12) && 9 <= a21)) || (((a12 * 9 + 858807) / 10 <= 546134 && a21 <= 6) && a24 == 1)) || (((a12 * 9 / 10 <= 546134 && a24 == 1) && 8 <= a21) && a21 <= 8)) || ((a24 == 1 && a12 <= 11) && a21 <= 7)) || ((((a12 <= 71 && a24 == 1) && 18 < a12) && !(a15 == 7)) && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:51:19,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE