./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/bitvector/s3_clnt_3.BV.c.cil-1a.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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 11:03:27,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:03:27,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:03:27,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:03:27,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:03:27,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:03:27,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:03:27,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:03:27,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:03:27,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:03:27,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:03:27,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:03:27,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:03:27,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:03:27,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:03:27,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:03:27,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:03:27,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:03:27,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:03:27,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:03:27,824 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:03:27,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:03:27,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:03:27,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:03:27,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:03:27,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 11:03:27,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 11:03:27,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 11:03:27,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 11:03:27,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 11:03:27,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 11:03:27,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:03:27,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:03:27,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:03:27,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:03:27,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:03:27,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:03:27,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:03:27,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:03:27,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:03:27,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:03:27,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:03:27,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 11:03:27,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:03:27,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:03:27,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:03:27,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:03:27,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 11:03:27,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 11:03:27,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:03:27,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:03:27,867 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:03:27,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:03:27,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:03:27,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:03:27,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:03:27,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:03:27,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 11:03:27,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 11:03:27,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 11:03:27,870 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:03:27,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:03:27,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:03:27,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 11:03:27,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:03:27,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:03:27,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 11:03:27,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 11:03:27,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:03:27,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 11:03:27,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 11:03:27,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:03:27,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 11:03:27,872 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:03:27,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 11:03:27,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 11:03:27,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2022-07-22 11:03:28,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:03:28,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:03:28,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:03:28,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:03:28,129 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:03:28,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-07-22 11:03:28,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330e9bb30/34ba154004424d3c9ebf50805a03f965/FLAG3b1321a6e [2022-07-22 11:03:28,555 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:03:28,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-07-22 11:03:28,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330e9bb30/34ba154004424d3c9ebf50805a03f965/FLAG3b1321a6e [2022-07-22 11:03:28,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/330e9bb30/34ba154004424d3c9ebf50805a03f965 [2022-07-22 11:03:28,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:03:28,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 11:03:28,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:03:28,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:03:28,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:03:28,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f61c8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28, skipping insertion in model container [2022-07-22 11:03:28,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:03:28,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:03:28,813 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/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-07-22 11:03:28,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:03:28,831 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:03:28,875 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/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-07-22 11:03:28,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:03:28,887 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:03:28,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28 WrapperNode [2022-07-22 11:03:28,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:03:28,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:03:28,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:03:28,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:03:28,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,954 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 503 [2022-07-22 11:03:28,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:03:28,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:03:28,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:03:28,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:03:28,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:03:28,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:03:28,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:03:28,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:03:28,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (1/1) ... [2022-07-22 11:03:28,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 11:03:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:03:29,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 11:03:29,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 11:03:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:03:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:03:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:03:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:03:29,118 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:03:29,120 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:03:29,133 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-22 11:03:29,630 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-07-22 11:03:29,630 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-07-22 11:03:29,630 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:03:29,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:03:29,638 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 11:03:29,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:03:29 BoogieIcfgContainer [2022-07-22 11:03:29,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:03:29,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 11:03:29,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 11:03:29,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 11:03:29,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:03:28" (1/3) ... [2022-07-22 11:03:29,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26323212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:03:29, skipping insertion in model container [2022-07-22 11:03:29,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:03:28" (2/3) ... [2022-07-22 11:03:29,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26323212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:03:29, skipping insertion in model container [2022-07-22 11:03:29,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:03:29" (3/3) ... [2022-07-22 11:03:29,646 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2022-07-22 11:03:29,656 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 11:03:29,656 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 11:03:29,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 11:03:29,702 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3fc58e25, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25f7591c [2022-07-22 11:03:29,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 11:03:29,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 132 states have (on average 1.75) internal successors, (231), 133 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 11:03:29,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:29,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:29,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:29,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:29,726 INFO L85 PathProgramCache]: Analyzing trace with hash 260039818, now seen corresponding path program 1 times [2022-07-22 11:03:29,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:29,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302880360] [2022-07-22 11:03:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:29,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:03:29,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:29,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302880360] [2022-07-22 11:03:29,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302880360] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:29,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:29,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887525326] [2022-07-22 11:03:29,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:29,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:29,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:29,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:29,978 INFO L87 Difference]: Start difference. First operand has 134 states, 132 states have (on average 1.75) internal successors, (231), 133 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:30,156 INFO L93 Difference]: Finished difference Result 263 states and 455 transitions. [2022-07-22 11:03:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:30,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2022-07-22 11:03:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:30,169 INFO L225 Difference]: With dead ends: 263 [2022-07-22 11:03:30,169 INFO L226 Difference]: Without dead ends: 121 [2022-07-22 11:03:30,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,176 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:30,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 338 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:30,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-22 11:03:30,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-07-22 11:03:30,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.5583333333333333) internal successors, (187), 120 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 187 transitions. [2022-07-22 11:03:30,219 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 187 transitions. Word has length 25 [2022-07-22 11:03:30,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:30,219 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 187 transitions. [2022-07-22 11:03:30,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,220 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 187 transitions. [2022-07-22 11:03:30,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 11:03:30,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:30,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:30,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 11:03:30,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:30,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:30,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1631610026, now seen corresponding path program 1 times [2022-07-22 11:03:30,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:30,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504752104] [2022-07-22 11:03:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:30,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:03:30,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:30,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504752104] [2022-07-22 11:03:30,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504752104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:30,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:30,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090912925] [2022-07-22 11:03:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:30,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:30,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:30,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:30,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,287 INFO L87 Difference]: Start difference. First operand 121 states and 187 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) 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) [2022-07-22 11:03:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:30,402 INFO L93 Difference]: Finished difference Result 249 states and 388 transitions. [2022-07-22 11:03:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:30,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) 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 [2022-07-22 11:03:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:30,405 INFO L225 Difference]: With dead ends: 249 [2022-07-22 11:03:30,407 INFO L226 Difference]: Without dead ends: 139 [2022-07-22 11:03:30,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,413 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:30,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 259 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:30,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-07-22 11:03:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2022-07-22 11:03:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.5333333333333334) internal successors, (207), 135 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 207 transitions. [2022-07-22 11:03:30,423 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 207 transitions. Word has length 37 [2022-07-22 11:03:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:30,423 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 207 transitions. [2022-07-22 11:03:30,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) 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) [2022-07-22 11:03:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 207 transitions. [2022-07-22 11:03:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-22 11:03:30,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:30,425 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:30,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 11:03:30,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1554238703, now seen corresponding path program 1 times [2022-07-22 11:03:30,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:30,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955171021] [2022-07-22 11:03:30,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:30,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:03:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:30,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955171021] [2022-07-22 11:03:30,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955171021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:30,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:30,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798190406] [2022-07-22 11:03:30,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:30,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,517 INFO L87 Difference]: Start difference. First operand 136 states and 207 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:30,535 INFO L93 Difference]: Finished difference Result 287 states and 432 transitions. [2022-07-22 11:03:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:30,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2022-07-22 11:03:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:30,538 INFO L225 Difference]: With dead ends: 287 [2022-07-22 11:03:30,538 INFO L226 Difference]: Without dead ends: 162 [2022-07-22 11:03:30,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,539 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 21 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:30,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 343 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:30,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-22 11:03:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-22 11:03:30,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.4906832298136645) internal successors, (240), 161 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 240 transitions. [2022-07-22 11:03:30,546 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 240 transitions. Word has length 51 [2022-07-22 11:03:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:30,547 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 240 transitions. [2022-07-22 11:03:30,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 240 transitions. [2022-07-22 11:03:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-22 11:03:30,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:30,549 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:30,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 11:03:30,549 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:30,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:30,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1420225197, now seen corresponding path program 1 times [2022-07-22 11:03:30,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:30,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835227556] [2022-07-22 11:03:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:30,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:03:30,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:30,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835227556] [2022-07-22 11:03:30,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835227556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:30,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:30,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:30,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810747138] [2022-07-22 11:03:30,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:30,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:30,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:30,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:30,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,599 INFO L87 Difference]: Start difference. First operand 162 states and 240 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:30,719 INFO L93 Difference]: Finished difference Result 308 states and 467 transitions. [2022-07-22 11:03:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2022-07-22 11:03:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:30,723 INFO L225 Difference]: With dead ends: 308 [2022-07-22 11:03:30,725 INFO L226 Difference]: Without dead ends: 183 [2022-07-22 11:03:30,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,728 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 16 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:30,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 272 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:30,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-07-22 11:03:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 179. [2022-07-22 11:03:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.4719101123595506) internal successors, (262), 178 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 262 transitions. [2022-07-22 11:03:30,745 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 262 transitions. Word has length 51 [2022-07-22 11:03:30,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:30,745 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 262 transitions. [2022-07-22 11:03:30,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 262 transitions. [2022-07-22 11:03:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 11:03:30,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:30,747 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:30,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 11:03:30,747 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2017552045, now seen corresponding path program 1 times [2022-07-22 11:03:30,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:30,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600602648] [2022-07-22 11:03:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 11:03:30,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600602648] [2022-07-22 11:03:30,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600602648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:30,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:30,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327349692] [2022-07-22 11:03:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:30,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:30,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:30,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,843 INFO L87 Difference]: Start difference. First operand 179 states and 262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:30,986 INFO L93 Difference]: Finished difference Result 363 states and 553 transitions. [2022-07-22 11:03:30,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:30,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 69 [2022-07-22 11:03:30,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:30,990 INFO L225 Difference]: With dead ends: 363 [2022-07-22 11:03:30,990 INFO L226 Difference]: Without dead ends: 179 [2022-07-22 11:03:30,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:30,996 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 27 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:30,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 253 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-07-22 11:03:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-07-22 11:03:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.4606741573033708) internal successors, (260), 178 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 260 transitions. [2022-07-22 11:03:31,017 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 260 transitions. Word has length 69 [2022-07-22 11:03:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,017 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 260 transitions. [2022-07-22 11:03:31,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 260 transitions. [2022-07-22 11:03:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-22 11:03:31,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,024 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:31,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 11:03:31,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1856789330, now seen corresponding path program 1 times [2022-07-22 11:03:31,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915818598] [2022-07-22 11:03:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 11:03:31,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915818598] [2022-07-22 11:03:31,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915818598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569444713] [2022-07-22 11:03:31,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,080 INFO L87 Difference]: Start difference. First operand 179 states and 260 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,099 INFO L93 Difference]: Finished difference Result 492 states and 718 transitions. [2022-07-22 11:03:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 70 [2022-07-22 11:03:31,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,102 INFO L225 Difference]: With dead ends: 492 [2022-07-22 11:03:31,102 INFO L226 Difference]: Without dead ends: 350 [2022-07-22 11:03:31,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,103 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 137 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 350 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-07-22 11:03:31,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-07-22 11:03:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.4524495677233429) internal successors, (504), 347 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 504 transitions. [2022-07-22 11:03:31,113 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 504 transitions. Word has length 70 [2022-07-22 11:03:31,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,114 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 504 transitions. [2022-07-22 11:03:31,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,114 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 504 transitions. [2022-07-22 11:03:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-22 11:03:31,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,116 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:31,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 11:03:31,116 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1069339995, now seen corresponding path program 1 times [2022-07-22 11:03:31,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822278463] [2022-07-22 11:03:31,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,171 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 11:03:31,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822278463] [2022-07-22 11:03:31,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822278463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477034433] [2022-07-22 11:03:31,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,174 INFO L87 Difference]: Start difference. First operand 348 states and 504 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,195 INFO L93 Difference]: Finished difference Result 759 states and 1111 transitions. [2022-07-22 11:03:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 70 [2022-07-22 11:03:31,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,199 INFO L225 Difference]: With dead ends: 759 [2022-07-22 11:03:31,199 INFO L226 Difference]: Without dead ends: 477 [2022-07-22 11:03:31,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,202 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 131 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 344 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-07-22 11:03:31,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 475. [2022-07-22 11:03:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.4451476793248945) internal successors, (685), 474 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 685 transitions. [2022-07-22 11:03:31,214 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 685 transitions. Word has length 70 [2022-07-22 11:03:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,215 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 685 transitions. [2022-07-22 11:03:31,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,215 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 685 transitions. [2022-07-22 11:03:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-22 11:03:31,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,217 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:31,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 11:03:31,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,218 INFO L85 PathProgramCache]: Analyzing trace with hash 751998128, now seen corresponding path program 1 times [2022-07-22 11:03:31,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262846430] [2022-07-22 11:03:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 11:03:31,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262846430] [2022-07-22 11:03:31,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262846430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958607940] [2022-07-22 11:03:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,292 INFO L87 Difference]: Start difference. First operand 475 states and 685 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,307 INFO L93 Difference]: Finished difference Result 479 states and 687 transitions. [2022-07-22 11:03:31,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 70 [2022-07-22 11:03:31,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,310 INFO L225 Difference]: With dead ends: 479 [2022-07-22 11:03:31,310 INFO L226 Difference]: Without dead ends: 341 [2022-07-22 11:03:31,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,311 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 129 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 387 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-22 11:03:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2022-07-22 11:03:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.4260355029585798) internal successors, (482), 338 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 482 transitions. [2022-07-22 11:03:31,326 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 482 transitions. Word has length 70 [2022-07-22 11:03:31,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,326 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 482 transitions. [2022-07-22 11:03:31,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 482 transitions. [2022-07-22 11:03:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-22 11:03:31,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,328 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:31,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 11:03:31,328 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1539447463, now seen corresponding path program 1 times [2022-07-22 11:03:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259389541] [2022-07-22 11:03:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 11:03:31,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259389541] [2022-07-22 11:03:31,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259389541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434569617] [2022-07-22 11:03:31,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,368 INFO L87 Difference]: Start difference. First operand 339 states and 482 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,383 INFO L93 Difference]: Finished difference Result 478 states and 682 transitions. [2022-07-22 11:03:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 70 [2022-07-22 11:03:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,385 INFO L225 Difference]: With dead ends: 478 [2022-07-22 11:03:31,385 INFO L226 Difference]: Without dead ends: 341 [2022-07-22 11:03:31,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,386 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 125 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 487 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-22 11:03:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2022-07-22 11:03:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.4201183431952662) internal successors, (480), 338 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 480 transitions. [2022-07-22 11:03:31,394 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 480 transitions. Word has length 70 [2022-07-22 11:03:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,395 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 480 transitions. [2022-07-22 11:03:31,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 480 transitions. [2022-07-22 11:03:31,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 11:03:31,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,396 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:31,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 11:03:31,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1979994253, now seen corresponding path program 1 times [2022-07-22 11:03:31,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447995406] [2022-07-22 11:03:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 11:03:31,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447995406] [2022-07-22 11:03:31,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447995406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638848977] [2022-07-22 11:03:31,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,430 INFO L87 Difference]: Start difference. First operand 339 states and 480 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,458 INFO L93 Difference]: Finished difference Result 881 states and 1267 transitions. [2022-07-22 11:03:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 72 [2022-07-22 11:03:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,461 INFO L225 Difference]: With dead ends: 881 [2022-07-22 11:03:31,461 INFO L226 Difference]: Without dead ends: 608 [2022-07-22 11:03:31,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,462 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 130 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 379 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-07-22 11:03:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2022-07-22 11:03:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 607 states have (on average 1.4168039538714992) internal successors, (860), 607 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 860 transitions. [2022-07-22 11:03:31,476 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 860 transitions. Word has length 72 [2022-07-22 11:03:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,477 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 860 transitions. [2022-07-22 11:03:31,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 860 transitions. [2022-07-22 11:03:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 11:03:31,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,479 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-22 11:03:31,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 11:03:31,479 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash -663990389, now seen corresponding path program 1 times [2022-07-22 11:03:31,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363230952] [2022-07-22 11:03:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:03:31,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363230952] [2022-07-22 11:03:31,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363230952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62424480] [2022-07-22 11:03:31,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,506 INFO L87 Difference]: Start difference. First operand 608 states and 860 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,528 INFO L93 Difference]: Finished difference Result 1192 states and 1691 transitions. [2022-07-22 11:03:31,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 73 [2022-07-22 11:03:31,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,531 INFO L225 Difference]: With dead ends: 1192 [2022-07-22 11:03:31,531 INFO L226 Difference]: Without dead ends: 650 [2022-07-22 11:03:31,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,532 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 11 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-07-22 11:03:31,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2022-07-22 11:03:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.4083204930662558) internal successors, (914), 649 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 914 transitions. [2022-07-22 11:03:31,547 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 914 transitions. Word has length 73 [2022-07-22 11:03:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,547 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 914 transitions. [2022-07-22 11:03:31,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 914 transitions. [2022-07-22 11:03:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-22 11:03:31,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,549 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-22 11:03:31,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 11:03:31,549 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1666060429, now seen corresponding path program 1 times [2022-07-22 11:03:31,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115585282] [2022-07-22 11:03:31,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-22 11:03:31,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115585282] [2022-07-22 11:03:31,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115585282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140407550] [2022-07-22 11:03:31,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,593 INFO L87 Difference]: Start difference. First operand 650 states and 914 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,704 INFO L93 Difference]: Finished difference Result 1330 states and 1909 transitions. [2022-07-22 11:03:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 90 [2022-07-22 11:03:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,708 INFO L225 Difference]: With dead ends: 1330 [2022-07-22 11:03:31,708 INFO L226 Difference]: Without dead ends: 746 [2022-07-22 11:03:31,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,709 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 271 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-22 11:03:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 734. [2022-07-22 11:03:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 1.38881309686221) internal successors, (1018), 733 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1018 transitions. [2022-07-22 11:03:31,728 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1018 transitions. Word has length 90 [2022-07-22 11:03:31,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,728 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1018 transitions. [2022-07-22 11:03:31,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1018 transitions. [2022-07-22 11:03:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-22 11:03:31,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,730 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-07-22 11:03:31,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 11:03:31,731 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,731 INFO L85 PathProgramCache]: Analyzing trace with hash -809022581, now seen corresponding path program 1 times [2022-07-22 11:03:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309017968] [2022-07-22 11:03:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-07-22 11:03:31,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309017968] [2022-07-22 11:03:31,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309017968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286646706] [2022-07-22 11:03:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,788 INFO L87 Difference]: Start difference. First operand 734 states and 1018 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:31,822 INFO L93 Difference]: Finished difference Result 1049 states and 1465 transitions. [2022-07-22 11:03:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 110 [2022-07-22 11:03:31,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:31,826 INFO L225 Difference]: With dead ends: 1049 [2022-07-22 11:03:31,826 INFO L226 Difference]: Without dead ends: 1047 [2022-07-22 11:03:31,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,828 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 148 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:31,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 321 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 11:03:31,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-22 11:03:31,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2022-07-22 11:03:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1046 states have (on average 1.3977055449330784) internal successors, (1462), 1046 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1462 transitions. [2022-07-22 11:03:31,873 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1462 transitions. Word has length 110 [2022-07-22 11:03:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:31,874 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1462 transitions. [2022-07-22 11:03:31,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:31,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1462 transitions. [2022-07-22 11:03:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-22 11:03:31,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:31,879 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:31,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 11:03:31,880 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2021159997, now seen corresponding path program 1 times [2022-07-22 11:03:31,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:31,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235496907] [2022-07-22 11:03:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:31,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-07-22 11:03:31,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:31,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235496907] [2022-07-22 11:03:31,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235496907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:31,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:31,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:31,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97996228] [2022-07-22 11:03:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:31,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:31,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:31,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:31,931 INFO L87 Difference]: Start difference. First operand 1047 states and 1462 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:32,071 INFO L93 Difference]: Finished difference Result 2322 states and 3361 transitions. [2022-07-22 11:03:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:32,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 132 [2022-07-22 11:03:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:32,077 INFO L225 Difference]: With dead ends: 2322 [2022-07-22 11:03:32,077 INFO L226 Difference]: Without dead ends: 1335 [2022-07-22 11:03:32,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,079 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:32,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 246 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-07-22 11:03:32,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1287. [2022-07-22 11:03:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1286 states have (on average 1.4401244167962675) internal successors, (1852), 1286 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1852 transitions. [2022-07-22 11:03:32,107 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1852 transitions. Word has length 132 [2022-07-22 11:03:32,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:32,108 INFO L495 AbstractCegarLoop]: Abstraction has 1287 states and 1852 transitions. [2022-07-22 11:03:32,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1852 transitions. [2022-07-22 11:03:32,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-22 11:03:32,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:32,111 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:32,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 11:03:32,111 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:32,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:32,112 INFO L85 PathProgramCache]: Analyzing trace with hash 505572298, now seen corresponding path program 1 times [2022-07-22 11:03:32,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:32,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172318444] [2022-07-22 11:03:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:32,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:32,151 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-22 11:03:32,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:32,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172318444] [2022-07-22 11:03:32,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172318444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:32,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:32,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839637035] [2022-07-22 11:03:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:32,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:32,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,153 INFO L87 Difference]: Start difference. First operand 1287 states and 1852 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:32,318 INFO L93 Difference]: Finished difference Result 3062 states and 4552 transitions. [2022-07-22 11:03:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:32,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 158 [2022-07-22 11:03:32,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:32,324 INFO L225 Difference]: With dead ends: 3062 [2022-07-22 11:03:32,324 INFO L226 Difference]: Without dead ends: 1739 [2022-07-22 11:03:32,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,330 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 81 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:32,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 225 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2022-07-22 11:03:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1665. [2022-07-22 11:03:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1664 states have (on average 1.4158653846153846) internal successors, (2356), 1664 states have internal predecessors, (2356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2356 transitions. [2022-07-22 11:03:32,366 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2356 transitions. Word has length 158 [2022-07-22 11:03:32,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:32,366 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2356 transitions. [2022-07-22 11:03:32,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2356 transitions. [2022-07-22 11:03:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-22 11:03:32,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:32,370 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:32,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 11:03:32,370 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1615904047, now seen corresponding path program 1 times [2022-07-22 11:03:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:32,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262968247] [2022-07-22 11:03:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-22 11:03:32,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:32,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262968247] [2022-07-22 11:03:32,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262968247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:32,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:32,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261242439] [2022-07-22 11:03:32,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:32,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:32,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:32,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,416 INFO L87 Difference]: Start difference. First operand 1665 states and 2356 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:32,568 INFO L93 Difference]: Finished difference Result 3576 states and 5107 transitions. [2022-07-22 11:03:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:32,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 179 [2022-07-22 11:03:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:32,575 INFO L225 Difference]: With dead ends: 3576 [2022-07-22 11:03:32,575 INFO L226 Difference]: Without dead ends: 1887 [2022-07-22 11:03:32,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,579 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 84 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:32,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 221 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2022-07-22 11:03:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1815. [2022-07-22 11:03:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1814 states have (on average 1.4046306504961412) internal successors, (2548), 1814 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2548 transitions. [2022-07-22 11:03:32,637 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2548 transitions. Word has length 179 [2022-07-22 11:03:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:32,637 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2548 transitions. [2022-07-22 11:03:32,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2548 transitions. [2022-07-22 11:03:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-22 11:03:32,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:32,641 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:32,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 11:03:32,641 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash -68206532, now seen corresponding path program 1 times [2022-07-22 11:03:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:32,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445855882] [2022-07-22 11:03:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-22 11:03:32,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:32,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445855882] [2022-07-22 11:03:32,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445855882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:32,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:32,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:32,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782184945] [2022-07-22 11:03:32,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:32,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:32,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:32,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:32,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,686 INFO L87 Difference]: Start difference. First operand 1815 states and 2548 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:32,836 INFO L93 Difference]: Finished difference Result 3876 states and 5485 transitions. [2022-07-22 11:03:32,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:32,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 203 [2022-07-22 11:03:32,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:32,844 INFO L225 Difference]: With dead ends: 3876 [2022-07-22 11:03:32,845 INFO L226 Difference]: Without dead ends: 2049 [2022-07-22 11:03:32,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,848 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 85 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:32,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 219 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2022-07-22 11:03:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1983. [2022-07-22 11:03:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1982 states have (on average 1.3975782038345106) internal successors, (2770), 1982 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2770 transitions. [2022-07-22 11:03:32,919 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2770 transitions. Word has length 203 [2022-07-22 11:03:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:32,920 INFO L495 AbstractCegarLoop]: Abstraction has 1983 states and 2770 transitions. [2022-07-22 11:03:32,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2770 transitions. [2022-07-22 11:03:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-22 11:03:32,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:32,924 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 11:03:32,924 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1035557186, now seen corresponding path program 1 times [2022-07-22 11:03:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:32,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425487597] [2022-07-22 11:03:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-22 11:03:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:32,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425487597] [2022-07-22 11:03:32,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425487597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:32,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:32,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:32,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111509006] [2022-07-22 11:03:32,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:32,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:32,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:32,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:32,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:32,965 INFO L87 Difference]: Start difference. First operand 1983 states and 2770 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:33,110 INFO L93 Difference]: Finished difference Result 4212 states and 5935 transitions. [2022-07-22 11:03:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:33,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 203 [2022-07-22 11:03:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:33,118 INFO L225 Difference]: With dead ends: 4212 [2022-07-22 11:03:33,118 INFO L226 Difference]: Without dead ends: 2241 [2022-07-22 11:03:33,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:33,121 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 87 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:33,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 217 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-07-22 11:03:33,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2169. [2022-07-22 11:03:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.3994464944649447) internal successors, (3034), 2168 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3034 transitions. [2022-07-22 11:03:33,194 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3034 transitions. Word has length 203 [2022-07-22 11:03:33,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:33,194 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3034 transitions. [2022-07-22 11:03:33,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3034 transitions. [2022-07-22 11:03:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-22 11:03:33,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:33,200 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:33,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 11:03:33,200 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash 454348542, now seen corresponding path program 1 times [2022-07-22 11:03:33,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:33,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719681571] [2022-07-22 11:03:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:33,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-07-22 11:03:33,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:33,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719681571] [2022-07-22 11:03:33,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719681571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:33,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:33,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024220181] [2022-07-22 11:03:33,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:33,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:33,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:33,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:33,254 INFO L87 Difference]: Start difference. First operand 2169 states and 3034 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:33,411 INFO L93 Difference]: Finished difference Result 4578 states and 6451 transitions. [2022-07-22 11:03:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:33,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 233 [2022-07-22 11:03:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:33,420 INFO L225 Difference]: With dead ends: 4578 [2022-07-22 11:03:33,420 INFO L226 Difference]: Without dead ends: 2445 [2022-07-22 11:03:33,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:33,423 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 90 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:33,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 211 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:33,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2022-07-22 11:03:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2379. [2022-07-22 11:03:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2378 states have (on average 1.4070647603027755) internal successors, (3346), 2378 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3346 transitions. [2022-07-22 11:03:33,482 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3346 transitions. Word has length 233 [2022-07-22 11:03:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:33,483 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3346 transitions. [2022-07-22 11:03:33,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3346 transitions. [2022-07-22 11:03:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-22 11:03:33,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:33,488 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:33,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 11:03:33,489 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2054712224, now seen corresponding path program 1 times [2022-07-22 11:03:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:33,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834948370] [2022-07-22 11:03:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-07-22 11:03:33,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:33,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834948370] [2022-07-22 11:03:33,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834948370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:33,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:33,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:33,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704626212] [2022-07-22 11:03:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:33,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:33,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:33,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:33,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:33,551 INFO L87 Difference]: Start difference. First operand 2379 states and 3346 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:33,705 INFO L93 Difference]: Finished difference Result 4758 states and 6685 transitions. [2022-07-22 11:03:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 268 [2022-07-22 11:03:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:33,713 INFO L225 Difference]: With dead ends: 4758 [2022-07-22 11:03:33,713 INFO L226 Difference]: Without dead ends: 2427 [2022-07-22 11:03:33,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:33,717 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 93 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:33,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 206 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:33,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2022-07-22 11:03:33,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2361. [2022-07-22 11:03:33,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2360 states have (on average 1.3949152542372882) internal successors, (3292), 2360 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3292 transitions. [2022-07-22 11:03:33,784 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3292 transitions. Word has length 268 [2022-07-22 11:03:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:33,784 INFO L495 AbstractCegarLoop]: Abstraction has 2361 states and 3292 transitions. [2022-07-22 11:03:33,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3292 transitions. [2022-07-22 11:03:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-07-22 11:03:33,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:33,791 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:33,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 11:03:33,792 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:33,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:33,792 INFO L85 PathProgramCache]: Analyzing trace with hash -671382342, now seen corresponding path program 1 times [2022-07-22 11:03:33,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:33,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459284629] [2022-07-22 11:03:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:33,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-07-22 11:03:33,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:33,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459284629] [2022-07-22 11:03:33,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459284629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:33,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:33,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:33,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166534013] [2022-07-22 11:03:33,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:33,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:33,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:33,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:33,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:33,851 INFO L87 Difference]: Start difference. First operand 2361 states and 3292 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:33,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:33,997 INFO L93 Difference]: Finished difference Result 4710 states and 6565 transitions. [2022-07-22 11:03:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:33,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2022-07-22 11:03:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:34,005 INFO L225 Difference]: With dead ends: 4710 [2022-07-22 11:03:34,005 INFO L226 Difference]: Without dead ends: 2415 [2022-07-22 11:03:34,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:34,008 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:34,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 265 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:34,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2022-07-22 11:03:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2361. [2022-07-22 11:03:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2360 states have (on average 1.3720338983050848) internal successors, (3238), 2360 states have internal predecessors, (3238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3238 transitions. [2022-07-22 11:03:34,076 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3238 transitions. Word has length 278 [2022-07-22 11:03:34,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:34,076 INFO L495 AbstractCegarLoop]: Abstraction has 2361 states and 3238 transitions. [2022-07-22 11:03:34,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3238 transitions. [2022-07-22 11:03:34,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-22 11:03:34,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:34,082 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:34,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 11:03:34,083 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:34,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:34,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1156408394, now seen corresponding path program 1 times [2022-07-22 11:03:34,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:34,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636063808] [2022-07-22 11:03:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:34,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-07-22 11:03:34,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:34,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636063808] [2022-07-22 11:03:34,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636063808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:34,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:34,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:34,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845577497] [2022-07-22 11:03:34,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:34,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:34,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:34,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:34,150 INFO L87 Difference]: Start difference. First operand 2361 states and 3238 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:34,303 INFO L93 Difference]: Finished difference Result 4953 states and 6742 transitions. [2022-07-22 11:03:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:34,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 305 [2022-07-22 11:03:34,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:34,312 INFO L225 Difference]: With dead ends: 4953 [2022-07-22 11:03:34,312 INFO L226 Difference]: Without dead ends: 2658 [2022-07-22 11:03:34,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:34,316 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 106 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:34,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 201 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2022-07-22 11:03:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2448. [2022-07-22 11:03:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.3710666121781774) internal successors, (3355), 2447 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3355 transitions. [2022-07-22 11:03:34,396 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3355 transitions. Word has length 305 [2022-07-22 11:03:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:34,396 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 3355 transitions. [2022-07-22 11:03:34,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3355 transitions. [2022-07-22 11:03:34,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-22 11:03:34,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:34,402 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:34,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 11:03:34,403 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash 619350975, now seen corresponding path program 1 times [2022-07-22 11:03:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:34,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548100122] [2022-07-22 11:03:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:34,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-07-22 11:03:34,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548100122] [2022-07-22 11:03:34,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548100122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:34,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:03:34,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:03:34,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305575520] [2022-07-22 11:03:34,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:34,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:03:34,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:34,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:03:34,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:34,459 INFO L87 Difference]: Start difference. First operand 2448 states and 3355 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:34,591 INFO L93 Difference]: Finished difference Result 4992 states and 6787 transitions. [2022-07-22 11:03:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:03:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 306 [2022-07-22 11:03:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:34,600 INFO L225 Difference]: With dead ends: 4992 [2022-07-22 11:03:34,600 INFO L226 Difference]: Without dead ends: 2349 [2022-07-22 11:03:34,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:03:34,603 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 39 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:34,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 273 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:34,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-07-22 11:03:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2343. [2022-07-22 11:03:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 1.365926558497011) internal successors, (3199), 2342 states have internal predecessors, (3199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3199 transitions. [2022-07-22 11:03:34,689 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3199 transitions. Word has length 306 [2022-07-22 11:03:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:34,690 INFO L495 AbstractCegarLoop]: Abstraction has 2343 states and 3199 transitions. [2022-07-22 11:03:34,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3199 transitions. [2022-07-22 11:03:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-22 11:03:34,697 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:34,697 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:34,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 11:03:34,698 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:34,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1977728998, now seen corresponding path program 1 times [2022-07-22 11:03:34,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:34,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708505283] [2022-07-22 11:03:34,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:34,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 476 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-07-22 11:03:34,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708505283] [2022-07-22 11:03:34,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708505283] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:03:34,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983134516] [2022-07-22 11:03:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:03:34,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:03:34,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 11:03:34,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 11:03:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:34,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 11:03:34,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:03:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 384 proven. 12 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-07-22 11:03:35,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 11:03:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 384 proven. 12 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-07-22 11:03:35,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983134516] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 11:03:35,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 11:03:35,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-07-22 11:03:35,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123248554] [2022-07-22 11:03:35,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 11:03:35,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 11:03:35,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:35,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 11:03:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-22 11:03:35,181 INFO L87 Difference]: Start difference. First operand 2343 states and 3199 transitions. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:35,702 INFO L93 Difference]: Finished difference Result 5675 states and 7940 transitions. [2022-07-22 11:03:35,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 11:03:35,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 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 316 [2022-07-22 11:03:35,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:35,721 INFO L225 Difference]: With dead ends: 5675 [2022-07-22 11:03:35,721 INFO L226 Difference]: Without dead ends: 3314 [2022-07-22 11:03:35,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-07-22 11:03:35,725 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 716 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:35,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 833 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:03:35,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3314 states. [2022-07-22 11:03:35,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3314 to 2631. [2022-07-22 11:03:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2630 states have (on average 1.373384030418251) internal successors, (3612), 2630 states have internal predecessors, (3612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3612 transitions. [2022-07-22 11:03:35,794 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3612 transitions. Word has length 316 [2022-07-22 11:03:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:35,794 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3612 transitions. [2022-07-22 11:03:35,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3612 transitions. [2022-07-22 11:03:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-22 11:03:35,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:35,801 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:35,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 11:03:36,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-22 11:03:36,016 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:36,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash -761229711, now seen corresponding path program 1 times [2022-07-22 11:03:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:36,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607627679] [2022-07-22 11:03:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:36,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 476 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-07-22 11:03:36,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:36,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607627679] [2022-07-22 11:03:36,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607627679] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:03:36,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705134127] [2022-07-22 11:03:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:36,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:03:36,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:03:36,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 11:03:36,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 11:03:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:36,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 11:03:36,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:03:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-07-22 11:03:36,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:03:36,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705134127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:36,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:03:36,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-22 11:03:36,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030512366] [2022-07-22 11:03:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:36,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 11:03:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 11:03:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 11:03:36,324 INFO L87 Difference]: Start difference. First operand 2631 states and 3612 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:36,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:36,489 INFO L93 Difference]: Finished difference Result 3853 states and 5281 transitions. [2022-07-22 11:03:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 11:03:36,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 317 [2022-07-22 11:03:36,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:36,494 INFO L225 Difference]: With dead ends: 3853 [2022-07-22 11:03:36,494 INFO L226 Difference]: Without dead ends: 2658 [2022-07-22 11:03:36,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-22 11:03:36,496 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 447 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:36,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 457 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2022-07-22 11:03:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2586. [2022-07-22 11:03:36,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 2585 states have (on average 1.3705996131528047) internal successors, (3543), 2585 states have internal predecessors, (3543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:36,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3543 transitions. [2022-07-22 11:03:36,566 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3543 transitions. Word has length 317 [2022-07-22 11:03:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:36,566 INFO L495 AbstractCegarLoop]: Abstraction has 2586 states and 3543 transitions. [2022-07-22 11:03:36,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:36,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3543 transitions. [2022-07-22 11:03:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-22 11:03:36,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:36,573 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:36,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 11:03:36,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-22 11:03:36,792 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:36,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2066727537, now seen corresponding path program 1 times [2022-07-22 11:03:36,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:36,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128787557] [2022-07-22 11:03:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:36,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 653 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-07-22 11:03:36,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:36,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128787557] [2022-07-22 11:03:36,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128787557] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:03:36,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582920171] [2022-07-22 11:03:36,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:36,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:03:36,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:03:36,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 11:03:36,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 11:03:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:37,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 11:03:37,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:03:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2022-07-22 11:03:37,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:03:37,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582920171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:03:37,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:03:37,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-22 11:03:37,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756999474] [2022-07-22 11:03:37,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:03:37,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 11:03:37,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:37,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 11:03:37,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 11:03:37,115 INFO L87 Difference]: Start difference. First operand 2586 states and 3543 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:37,271 INFO L93 Difference]: Finished difference Result 3606 states and 4893 transitions. [2022-07-22 11:03:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 11:03:37,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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 342 [2022-07-22 11:03:37,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:37,273 INFO L225 Difference]: With dead ends: 3606 [2022-07-22 11:03:37,273 INFO L226 Difference]: Without dead ends: 1187 [2022-07-22 11:03:37,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-22 11:03:37,276 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 420 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:37,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 532 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 11:03:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2022-07-22 11:03:37,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1187. [2022-07-22 11:03:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 1186 states have (on average 1.3625632377740304) internal successors, (1616), 1186 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1616 transitions. [2022-07-22 11:03:37,299 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1616 transitions. Word has length 342 [2022-07-22 11:03:37,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:37,299 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 1616 transitions. [2022-07-22 11:03:37,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1616 transitions. [2022-07-22 11:03:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-07-22 11:03:37,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:03:37,306 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 10, 10, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:03:37,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 11:03:37,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:03:37,520 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:03:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:03:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1232901937, now seen corresponding path program 1 times [2022-07-22 11:03:37,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:03:37,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673694595] [2022-07-22 11:03:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:03:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 813 proven. 12 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-07-22 11:03:37,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:03:37,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673694595] [2022-07-22 11:03:37,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673694595] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:03:37,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744057201] [2022-07-22 11:03:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:03:37,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:03:37,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:03:37,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 11:03:37,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 11:03:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:03:37,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 11:03:37,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:03:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 813 proven. 12 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-07-22 11:03:37,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 11:03:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 813 proven. 12 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-07-22 11:03:37,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744057201] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 11:03:37,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 11:03:37,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-07-22 11:03:37,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605606404] [2022-07-22 11:03:37,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 11:03:37,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 11:03:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:03:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 11:03:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-22 11:03:37,869 INFO L87 Difference]: Start difference. First operand 1187 states and 1616 transitions. Second operand has 8 states, 8 states have (on average 38.875) internal successors, (311), 8 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:38,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:03:38,058 INFO L93 Difference]: Finished difference Result 1992 states and 2726 transitions. [2022-07-22 11:03:38,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 11:03:38,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.875) internal successors, (311), 8 states have internal predecessors, (311), 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 393 [2022-07-22 11:03:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:03:38,060 INFO L225 Difference]: With dead ends: 1992 [2022-07-22 11:03:38,060 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 11:03:38,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-22 11:03:38,063 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 107 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 11:03:38,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 484 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 11:03:38,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 11:03:38,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 11:03:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 11:03:38,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 393 [2022-07-22 11:03:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:03:38,064 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 11:03:38,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.875) internal successors, (311), 8 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:03:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 11:03:38,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 11:03:38,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 11:03:38,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 11:03:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-22 11:03:38,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 11:03:46,325 WARN L233 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 150 DAG size of output: 150 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-22 11:03:48,416 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2022-07-22 11:03:48,416 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 252) no Hoare annotation was computed. [2022-07-22 11:03:48,416 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 551) no Hoare annotation was computed. [2022-07-22 11:03:48,416 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 562) no Hoare annotation was computed. [2022-07-22 11:03:48,416 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,416 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 573) no Hoare annotation was computed. [2022-07-22 11:03:48,416 INFO L895 garLoopResultBuilder]: At program point L203(lines 199 552) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (or (and (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352) (not .cse0) (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse0 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)))) [2022-07-22 11:03:48,417 INFO L895 garLoopResultBuilder]: At program point L137(lines 133 574) the Hoare annotation is: (let ((.cse7 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse2 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse1 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse4 (not .cse7)) (.cse9 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse0 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse8 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse8 .cse5 .cse6) (and .cse0 .cse1 .cse3 .cse9 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse3 .cse9 .cse8 .cse5 .cse6) (and .cse7 .cse0 .cse3 .cse8 .cse5 .cse6 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))))) [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 501 513) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 550) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 561) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 572) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2022-07-22 11:03:48,417 INFO L895 garLoopResultBuilder]: At program point L206(lines 205 550) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse1 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse4 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse7 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse8 (not .cse0)) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse8 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse7 .cse2 .cse3 .cse8 .cse5 .cse6 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))))) [2022-07-22 11:03:48,418 INFO L895 garLoopResultBuilder]: At program point L173(lines 163 564) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4480)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 .cse2 .cse3 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse4 .cse5) (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 .cse3 (not .cse1) .cse4 .cse5))) [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L471(lines 471 482) no Hoare annotation was computed. [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 471 482) no Hoare annotation was computed. [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2022-07-22 11:03:48,418 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 344) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L899 garLoopResultBuilder]: For program point L340-2(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 549) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 560) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 571) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 76 630) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 479) no Hoare annotation was computed. [2022-07-22 11:03:48,419 INFO L902 garLoopResultBuilder]: At program point L209(lines 208 549) the Hoare annotation is: true [2022-07-22 11:03:48,419 INFO L895 garLoopResultBuilder]: At program point L143(lines 139 572) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432)) (.cse2 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse4 .cse5) (and .cse1 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 .cse3 (not .cse0) .cse4 .cse5))) [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2022-07-22 11:03:48,420 INFO L902 garLoopResultBuilder]: At program point L640(lines 632 642) the Hoare annotation is: true [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 559) no Hoare annotation was computed. [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 570) no Hoare annotation was computed. [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 581) no Hoare annotation was computed. [2022-07-22 11:03:48,420 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2022-07-22 11:03:48,421 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,421 INFO L899 garLoopResultBuilder]: For program point L311(line 311) no Hoare annotation was computed. [2022-07-22 11:03:48,421 INFO L899 garLoopResultBuilder]: For program point L311-2(line 311) no Hoare annotation was computed. [2022-07-22 11:03:48,421 INFO L902 garLoopResultBuilder]: At program point L212(lines 211 548) the Hoare annotation is: true [2022-07-22 11:03:48,421 INFO L895 garLoopResultBuilder]: At program point L179(lines 175 560) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512))) (or (and .cse0 .cse1 .cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4 .cse5) (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 (not .cse1) .cse3 .cse4 .cse5))) [2022-07-22 11:03:48,421 INFO L899 garLoopResultBuilder]: For program point L311-4(line 311) no Hoare annotation was computed. [2022-07-22 11:03:48,421 INFO L895 garLoopResultBuilder]: At program point L113(lines 112 581) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse1 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse3 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse7 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse8 (not .cse0)) (.cse5 (= 12292 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse5 .cse6) (and .cse7 .cse1 .cse2 .cse8 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse5) (and .cse7 .cse8 .cse5 .cse6)))) [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L311-6(line 311) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 417) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L412-2(lines 412 417) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L313-2(line 313) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 558) no Hoare annotation was computed. [2022-07-22 11:03:48,422 INFO L899 garLoopResultBuilder]: For program point L313-4(line 313) no Hoare annotation was computed. [2022-07-22 11:03:48,423 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 569) no Hoare annotation was computed. [2022-07-22 11:03:48,423 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 580) no Hoare annotation was computed. [2022-07-22 11:03:48,423 INFO L899 garLoopResultBuilder]: For program point L313-6(line 313) no Hoare annotation was computed. [2022-07-22 11:03:48,423 INFO L899 garLoopResultBuilder]: For program point L313-8(lines 310 314) no Hoare annotation was computed. [2022-07-22 11:03:48,423 INFO L895 garLoopResultBuilder]: At program point L149(lines 145 570) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse3 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse1 (not .cse2) .cse3 .cse4 .cse5) (and .cse2 .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4 .cse5))) [2022-07-22 11:03:48,423 INFO L895 garLoopResultBuilder]: At program point L546(lines 109 612) the Hoare annotation is: (let ((.cse7 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse3 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse11 (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse9 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse12 (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse13 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse1 (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse14 (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse15 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse8 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse16 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (.cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse17 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse4 (not .cse7)) (.cse18 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse2 .cse8 .cse9 .cse5 .cse10) (and .cse7 .cse2 .cse8 .cse11 .cse5 .cse10) (and .cse0 .cse4 .cse12) (and .cse0 .cse13 .cse2 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse8 .cse5) (and .cse0 .cse2 .cse4 .cse11 .cse5 .cse10) (and .cse6 .cse0 .cse2 .cse4 .cse9 .cse5 .cse10) (and .cse14 .cse0 .cse4 .cse15) (and .cse7 .cse8 .cse12) (and .cse7 .cse13 .cse2 .cse8 .cse5) (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 1) (and .cse7 .cse14 .cse2 .cse8 .cse5 .cse16) (and .cse7 .cse1 .cse2 .cse8 .cse5 .cse16) (and .cse7 .cse2 .cse17 .cse8 .cse18 .cse5 .cse16) (and .cse7 .cse14 .cse8 .cse15) (and .cse7 .cse2 .cse8 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse5 .cse16) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse2 .cse17 .cse4 .cse18 .cse5 .cse10)))) [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 92) no Hoare annotation was computed. [2022-07-22 11:03:48,424 INFO L902 garLoopResultBuilder]: At program point L613(lines 108 614) the Hoare annotation is: true [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 557) no Hoare annotation was computed. [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 568) no Hoare annotation was computed. [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 579) no Hoare annotation was computed. [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 11:03:48,424 INFO L899 garLoopResultBuilder]: For program point L383-2(lines 383 387) no Hoare annotation was computed. [2022-07-22 11:03:48,425 INFO L895 garLoopResultBuilder]: At program point L218(lines 115 580) the Hoare annotation is: (let ((.cse8 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse1 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse5 (not .cse8)) (.cse7 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse2 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse0 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse6 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse9 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse2 .cse3 .cse5 .cse6))) (and .cse1 .cse4 .cse5 .cse7) (and .cse8 .cse4 .cse9 .cse7) (and (or (and .cse8 .cse2 .cse3 .cse9 .cse6) (and .cse8 .cse2 .cse3 .cse4 .cse9)) .cse0) (and .cse0 (let ((.cse10 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (or (and .cse8 .cse3 .cse9 .cse6 .cse10) (and .cse8 .cse3 .cse4 .cse9 .cse10))))))) [2022-07-22 11:03:48,425 INFO L895 garLoopResultBuilder]: At program point L185(lines 181 558) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512))) (or (and .cse0 .cse1 .cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4 .cse5) (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 (not .cse1) .cse3 .cse4 .cse5))) [2022-07-22 11:03:48,425 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 610) no Hoare annotation was computed. [2022-07-22 11:03:48,425 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2022-07-22 11:03:48,425 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 84 92) no Hoare annotation was computed. [2022-07-22 11:03:48,425 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 607) no Hoare annotation was computed. [2022-07-22 11:03:48,425 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 357) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 319 333) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 556) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 567) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 578) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L617(lines 617 621) no Hoare annotation was computed. [2022-07-22 11:03:48,426 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 593) no Hoare annotation was computed. [2022-07-22 11:03:48,427 INFO L899 garLoopResultBuilder]: For program point L617-2(lines 617 621) no Hoare annotation was computed. [2022-07-22 11:03:48,427 INFO L899 garLoopResultBuilder]: For program point L584-2(lines 583 605) no Hoare annotation was computed. [2022-07-22 11:03:48,427 INFO L895 garLoopResultBuilder]: At program point L155(lines 151 568) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4448)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 .cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4 .cse5) (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 .cse3 (not .cse1) .cse4 .cse5))) [2022-07-22 11:03:48,427 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2022-07-22 11:03:48,427 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 459) no Hoare annotation was computed. [2022-07-22 11:03:48,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 11:03:48,427 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 227) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 555) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 566) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L223-2(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 577) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 321 333) no Hoare annotation was computed. [2022-07-22 11:03:48,428 INFO L895 garLoopResultBuilder]: At program point L191(lines 187 556) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 .cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4 .cse5) (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 (not .cse1) .cse3 .cse4 .cse5))) [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 522 526) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 264) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 554) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 565) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 576) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 102) no Hoare annotation was computed. [2022-07-22 11:03:48,429 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 76 630) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L895 garLoopResultBuilder]: At program point L161(lines 157 566) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse1 (not .cse2) .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4 .cse5))) [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 99) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 303) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 553) no Hoare annotation was computed. [2022-07-22 11:03:48,430 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 564) no Hoare annotation was computed. [2022-07-22 11:03:48,431 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 575) no Hoare annotation was computed. [2022-07-22 11:03:48,431 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2022-07-22 11:03:48,431 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2022-07-22 11:03:48,431 INFO L895 garLoopResultBuilder]: At program point L197(lines 193 554) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 .cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3 .cse4) (and .cse0 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|) .cse2 (not .cse1) .cse3 .cse4))) [2022-07-22 11:03:48,431 INFO L895 garLoopResultBuilder]: At program point L131(lines 127 576) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse7 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse1 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400)) (.cse4 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse8 (<= 208 |ULTIMATE.start_ssl3_connect_~ag_Y~0#1|)) (.cse2 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~ag_X~0#1| 4352)) (.cse9 (not .cse0)) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (<= 4352 |ULTIMATE.start_ssl3_connect_~ag_X~0#1|)) (.cse10 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4384))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse4 .cse5 .cse7) (and .cse8 .cse9 .cse5 .cse10 .cse7) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse6 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (and .cse8 .cse2 .cse3 .cse9 .cse5 .cse6 .cse10)))) [2022-07-22 11:03:48,431 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 11:03:48,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2022-07-22 11:03:48,432 INFO L895 garLoopResultBuilder]: At program point L363(lines 76 630) the Hoare annotation is: false [2022-07-22 11:03:48,432 INFO L902 garLoopResultBuilder]: At program point L628(lines 76 630) the Hoare annotation is: true [2022-07-22 11:03:48,432 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2022-07-22 11:03:48,432 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2022-07-22 11:03:48,432 INFO L899 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2022-07-22 11:03:48,432 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 302) no Hoare annotation was computed. [2022-07-22 11:03:48,432 INFO L899 garLoopResultBuilder]: For program point L298-2(lines 213 545) no Hoare annotation was computed. [2022-07-22 11:03:48,432 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 552) no Hoare annotation was computed. [2022-07-22 11:03:48,433 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 563) no Hoare annotation was computed. [2022-07-22 11:03:48,433 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 574) no Hoare annotation was computed. [2022-07-22 11:03:48,433 INFO L902 garLoopResultBuilder]: At program point L629(lines 18 631) the Hoare annotation is: true [2022-07-22 11:03:48,433 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2022-07-22 11:03:48,436 INFO L356 BasicCegarLoop]: Path program 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] [2022-07-22 11:03:48,437 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 11:03:48,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 11:03:48 BoogieIcfgContainer [2022-07-22 11:03:48,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 11:03:48,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 11:03:48,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 11:03:48,463 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 11:03:48,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:03:29" (3/4) ... [2022-07-22 11:03:48,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 11:03:48,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-22 11:03:48,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 11:03:48,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 11:03:48,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 11:03:48,556 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 11:03:48,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 11:03:48,557 INFO L158 Benchmark]: Toolchain (without parser) took 19966.58ms. Allocated memory was 94.4MB in the beginning and 337.6MB in the end (delta: 243.3MB). Free memory was 53.1MB in the beginning and 196.8MB in the end (delta: -143.7MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,557 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 70.2MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 11:03:48,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.21ms. Allocated memory is still 94.4MB. Free memory was 52.9MB in the beginning and 61.1MB in the end (delta: -8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.05ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,558 INFO L158 Benchmark]: Boogie Preprocessor took 28.34ms. Allocated memory is still 94.4MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,559 INFO L158 Benchmark]: RCFGBuilder took 654.73ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 55.9MB in the beginning and 79.5MB in the end (delta: -23.6MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,560 INFO L158 Benchmark]: TraceAbstraction took 18821.14ms. Allocated memory was 113.2MB in the beginning and 337.6MB in the end (delta: 224.4MB). Free memory was 78.9MB in the beginning and 204.1MB in the end (delta: -125.2MB). Peak memory consumption was 202.7MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,561 INFO L158 Benchmark]: Witness Printer took 93.66ms. Allocated memory is still 337.6MB. Free memory was 204.1MB in the beginning and 196.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 11:03:48,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 70.2MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.21ms. Allocated memory is still 94.4MB. Free memory was 52.9MB in the beginning and 61.1MB in the end (delta: -8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.05ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.34ms. Allocated memory is still 94.4MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.73ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 55.9MB in the beginning and 79.5MB in the end (delta: -23.6MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 18821.14ms. Allocated memory was 113.2MB in the beginning and 337.6MB in the end (delta: 224.4MB). Free memory was 78.9MB in the beginning and 204.1MB in the end (delta: -125.2MB). Peak memory consumption was 202.7MB. Max. memory is 16.1GB. * Witness Printer took 93.66ms. Allocated memory is still 337.6MB. Free memory was 204.1MB in the beginning and 196.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 624]: 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, 134 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.8s, OverallIterations: 27, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3386 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3386 mSDsluCounter, 8955 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3553 mSDsCounter, 695 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2988 IncrementalHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 695 mSolverCounterUnsat, 5402 mSDtfsCounter, 2988 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2178 GetRequests, 2122 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2631occurred in iteration=24, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 27 MinimizatonAttempts, 1516 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 174 NumberOfFragments, 1294 HoareAnnotationTreeSize, 23 FomulaSimplifications, 27237 FormulaSimplificationTreeSizeReduction, 8.1s HoareSimplificationTime, 23 FomulaSimplificationsInter, 173531 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 5859 NumberOfCodeBlocks, 5859 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 6535 ConstructedInterpolants, 0 QuantifiedInterpolants, 8595 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2442 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 33 InterpolantComputations, 25 PerfectInterpolantSequences, 19517/19606 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: 109]: Loop Invariant Derived loop invariant: (((((((((((((((((((((208 <= ag_Y && 4384 == s__state) && ag_X <= 4352) && blastFlag == 1) && !(s__hit == 0)) && 4352 <= ag_X) || ((((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && s__state <= 4528) && 4352 <= ag_X) && blastFlag <= 4)) || (((((s__hit == 0 && ag_X <= 4352) && 48 == ag_Z) && 4416 == s__state) && 4352 <= ag_X) && blastFlag <= 4)) || ((208 <= ag_Y && !(s__hit == 0)) && 3 == s__state)) || ((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= ag_X)) || (((((s__hit == 0 && 4384 == s__state) && ag_X <= 4352) && blastFlag == 1) && 48 == ag_Z) && 4352 <= ag_X)) || (((((208 <= ag_Y && ag_X <= 4352) && !(s__hit == 0)) && 4416 == s__state) && 4352 <= ag_X) && blastFlag <= 4)) || ((((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && s__state <= 4528) && 4352 <= ag_X) && blastFlag <= 4)) || (((4368 == s__state && 208 <= ag_Y) && !(s__hit == 0)) && blastFlag == 0)) || ((s__hit == 0 && 48 == ag_Z) && 3 == s__state)) || ((((s__hit == 0 && 2 == blastFlag) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X)) || s__state == 1) || (((((s__hit == 0 && 4368 == s__state) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0)) || (((((s__hit == 0 && 4384 == s__state) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0)) || ((((((s__hit == 0 && ag_X <= 4352) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0)) || (((s__hit == 0 && 4368 == s__state) && 48 == ag_Z) && blastFlag == 0)) || (((((s__hit == 0 && ag_X <= 4352) && 48 == ag_Z) && 4560 <= s__state) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0)) || (((((((3 == s__s3__tmp__next_state___0 && 208 <= ag_Y) && ag_X <= 4352) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((((((4432 <= s__state && s__hit == 0) && s__state <= 4480) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && blastFlag <= 4) || ((((((4432 <= s__state && 208 <= ag_Y) && s__state <= 4480) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: ((((4352 <= ag_X && (((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && s__state <= 4352) && !(s__hit == 0)) || ((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4560 <= s__state))) || (((208 <= ag_Y && s__state <= 4352) && !(s__hit == 0)) && blastFlag == 0)) || (((s__hit == 0 && s__state <= 4352) && 48 == ag_Z) && blastFlag == 0)) || ((((((s__hit == 0 && 2 == blastFlag) && ag_X <= 4352) && 48 == ag_Z) && 4560 <= s__state) || ((((s__hit == 0 && 2 == blastFlag) && ag_X <= 4352) && s__state <= 4352) && 48 == ag_Z)) && 4352 <= ag_X)) || (4352 <= ag_X && (((((s__hit == 0 && ag_X <= 4352) && 48 == ag_Z) && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) || ((((s__hit == 0 && ag_X <= 4352) && s__state <= 4352) && 48 == ag_Z) && 4560 <= s__s3__tmp__next_state___0))) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && blastFlag <= 4) && s__state <= 4512) || ((((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= ag_X) && blastFlag <= 4) && s__state <= 4512) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && blastFlag <= 4) || (((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((((((s__state <= 4432 && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X) && blastFlag <= 4) || ((((((s__hit == 0 && s__state <= 4432) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((((s__hit == 0 && s__state < 4400) && 2 == blastFlag) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) || ((((s__hit == 0 && s__state < 4400) && 48 == ag_Z) && 4352 <= s__state) && blastFlag == 0)) || ((((208 <= ag_Y && !(s__hit == 0)) && 4352 <= s__state) && s__state < 4384) && blastFlag == 0)) || ((((((s__hit == 0 && s__state < 4400) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0)) || ((((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X) && s__state < 4384) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((((((s__hit == 0 && 2 == blastFlag) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && 12292 == s__state) || (((s__hit == 0 && 48 == ag_Z) && 12292 == s__state) && blastFlag == 0)) || (((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= ag_X) && 12292 == s__state)) || (((((s__hit == 0 && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0) && 12292 == s__state)) || (((208 <= ag_Y && !(s__hit == 0)) && 12292 == s__state) && blastFlag == 0) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: (((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4560 <= s__state) && 4352 <= ag_X) || ((4432 <= s__state && s__hit == 0) && 48 == ag_Z) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && s__state <= 4464) && 4352 <= ag_X) && blastFlag <= 4) || ((((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && s__state <= 4464) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((((((((s__state < 4400 && 208 <= ag_Y) && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X) || ((((((s__hit == 0 && s__state < 4400) && 2 == blastFlag) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X)) || ((((((s__state < 4400 && 208 <= ag_Y) && ag_X <= 4352) && blastFlag == 1) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X)) || ((((((s__hit == 0 && s__state < 4400) && ag_X <= 4352) && blastFlag == 1) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X)) || ((((((s__hit == 0 && s__state < 4400) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && s__state <= 4528) && 4352 <= ag_X) && blastFlag <= 4) || ((((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && s__state <= 4528) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 632]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= ag_X) && blastFlag <= 4) && s__state <= 4512) || ((((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= ag_X) && blastFlag <= 4) && s__state <= 4512) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((((s__hit == 0 && s__state <= 4432) && 2 == blastFlag) && ag_X <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) || ((((((s__state <= 4432 && 208 <= ag_Y) && 2 == blastFlag) && ag_X <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((((((4432 <= s__state && s__hit == 0) && ag_X <= 4352) && 48 == ag_Z) && s__state <= 4448) && 4352 <= ag_X) && blastFlag <= 4) || ((((((4432 <= s__state && 208 <= ag_Y) && ag_X <= 4352) && s__state <= 4448) && !(s__hit == 0)) && 4352 <= ag_X) && blastFlag <= 4) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((((((s__hit == 0 && 2 == blastFlag) && ag_X <= 4352) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) || ((((((208 <= ag_Y && 2 == blastFlag) && ag_X <= 4352) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X)) || ((((((s__hit == 0 && ag_X <= 4352) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state) && 4352 <= ag_X) && 4560 <= s__s3__tmp__next_state___0)) || (((((((3 == s__s3__tmp__next_state___0 && 208 <= ag_Y) && ag_X <= 4352) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && 4352 <= ag_X) && blastFlag <= 4) RESULT: Ultimate proved your program to be correct! [2022-07-22 11:03:48,595 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