./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_2.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 310063ef643a90e947dd66ba142cc8ae546f077a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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_2.BV.c.cil-1a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 310063ef643a90e947dd66ba142cc8ae546f077a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:02:24,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:02:24,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:02:24,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:02:24,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:02:24,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:02:24,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:02:24,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:02:24,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:02:24,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:02:24,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:02:24,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:02:24,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:02:24,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:02:24,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:02:24,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:02:24,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:02:24,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:02:24,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:02:24,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:02:24,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:02:24,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:02:24,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:02:24,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:02:24,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:02:24,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:02:24,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:02:24,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:02:24,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:02:24,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:02:24,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:02:24,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:02:24,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:02:24,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:02:24,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:02:24,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:02:24,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:02:24,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:02:24,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:02:24,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:02:24,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:02:24,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 03:02:24,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:02:24,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:02:24,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:02:24,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:02:24,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:02:24,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:02:24,462 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:02:24,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:02:24,462 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:02:24,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 03:02:24,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:02:24,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:02:24,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:02:24,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:02:24,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:02:24,464 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:02:24,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:02:24,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:02:24,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:02:24,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:02:24,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:02:24,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:02:24,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:02:24,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:02:24,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:02:24,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:02:24,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 03:02:24,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 03:02:24,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:02:24,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:02:24,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 310063ef643a90e947dd66ba142cc8ae546f077a [2021-08-29 03:02:24,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:02:24,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:02:24,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:02:24,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:02:24,779 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:02:24,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-08-29 03:02:24,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/379d0b87d/4bc62d5e82364db0bb897750248399e8/FLAG9fb68763b [2021-08-29 03:02:25,252 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:02:25,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-08-29 03:02:25,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/379d0b87d/4bc62d5e82364db0bb897750248399e8/FLAG9fb68763b [2021-08-29 03:02:25,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/379d0b87d/4bc62d5e82364db0bb897750248399e8 [2021-08-29 03:02:25,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:02:25,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:02:25,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:02:25,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:02:25,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:02:25,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:02:25" (1/1) ... [2021-08-29 03:02:25,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519ef575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:25, skipping insertion in model container [2021-08-29 03:02:25,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:02:25" (1/1) ... [2021-08-29 03:02:25,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:02:25,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:02:25,902 WARN L228 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_2.BV.c.cil-1a.c[37270,37283] [2021-08-29 03:02:25,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:02:25,920 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:02:26,002 WARN L228 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_2.BV.c.cil-1a.c[37270,37283] [2021-08-29 03:02:26,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:02:26,024 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:02:26,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26 WrapperNode [2021-08-29 03:02:26,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:02:26,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:02:26,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:02:26,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:02:26,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:02:26,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:02:26,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:02:26,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:02:26,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:02:26,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:02:26,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:02:26,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:02:26,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (1/1) ... [2021-08-29 03:02:26,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:02:26,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:02:26,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 03:02:26,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 03:02:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 03:02:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:02:26,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:02:26,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:02:26,370 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:02:26,575 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:02:26,578 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:02:26,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:02:26,588 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:02:26,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:02:26 BoogieIcfgContainer [2021-08-29 03:02:26,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:02:26,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:02:26,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:02:26,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:02:26,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:02:25" (1/3) ... [2021-08-29 03:02:26,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4626855f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:02:26, skipping insertion in model container [2021-08-29 03:02:26,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:26" (2/3) ... [2021-08-29 03:02:26,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4626855f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:02:26, skipping insertion in model container [2021-08-29 03:02:26,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:02:26" (3/3) ... [2021-08-29 03:02:26,597 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-08-29 03:02:26,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:02:26,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:02:26,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:02:26,654 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 03:02:26,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:02:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:26,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:02:26,681 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:26,682 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:26,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:26,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-08-29 03:02:26,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:26,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942532323] [2021-08-29 03:02:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:26,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:02:26,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:26,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942532323] [2021-08-29 03:02:26,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942532323] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:26,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:26,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:26,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647462504] [2021-08-29 03:02:26,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:26,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:26,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:26,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:26,971 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:27,435 INFO L93 Difference]: Finished difference Result 246 states and 421 transitions. [2021-08-29 03:02:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:27,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-08-29 03:02:27,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:27,445 INFO L225 Difference]: With dead ends: 246 [2021-08-29 03:02:27,446 INFO L226 Difference]: Without dead ends: 112 [2021-08-29 03:02:27,449 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:27,453 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 316.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.65ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 401.86ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:27,454 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 410 Unknown, 0 Unchecked, 3.65ms Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 401.86ms Time] [2021-08-29 03:02:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-08-29 03:02:27,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-08-29 03:02:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:27,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-08-29 03:02:27,486 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-08-29 03:02:27,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:27,486 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-08-29 03:02:27,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-08-29 03:02:27,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-29 03:02:27,488 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:27,488 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:27,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 03:02:27,489 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:27,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:27,490 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-08-29 03:02:27,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:27,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145118830] [2021-08-29 03:02:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:27,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:27,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:02:27,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:27,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145118830] [2021-08-29 03:02:27,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145118830] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:27,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:27,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:27,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244336262] [2021-08-29 03:02:27,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:27,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:27,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:27,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:27,557 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:27,766 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-08-29 03:02:27,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:27,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-08-29 03:02:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:27,772 INFO L225 Difference]: With dead ends: 233 [2021-08-29 03:02:27,772 INFO L226 Difference]: Without dead ends: 131 [2021-08-29 03:02:27,777 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:27,779 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.55ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 191.04ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:27,780 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 339 Unknown, 0 Unchecked, 1.55ms Time], IncrementalHoareTripleChecker [7 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 191.04ms Time] [2021-08-29 03:02:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-29 03:02:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2021-08-29 03:02:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-08-29 03:02:27,799 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-08-29 03:02:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:27,800 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-08-29 03:02:27,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-08-29 03:02:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-29 03:02:27,801 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:27,802 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:27,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 03:02:27,813 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:27,814 INFO L82 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2021-08-29 03:02:27,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:27,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980060364] [2021-08-29 03:02:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:27,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:27,904 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 03:02:27,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:27,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980060364] [2021-08-29 03:02:27,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980060364] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:27,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:27,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:27,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904591991] [2021-08-29 03:02:27,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:27,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:27,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:27,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:27,908 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:28,150 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2021-08-29 03:02:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:28,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 50 [2021-08-29 03:02:28,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:28,151 INFO L225 Difference]: With dead ends: 265 [2021-08-29 03:02:28,151 INFO L226 Difference]: Without dead ends: 148 [2021-08-29 03:02:28,152 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:28,153 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 224.03ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:28,154 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 356 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 224.03ms Time] [2021-08-29 03:02:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-08-29 03:02:28,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2021-08-29 03:02:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-08-29 03:02:28,162 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-08-29 03:02:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:28,163 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-08-29 03:02:28,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-08-29 03:02:28,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-29 03:02:28,165 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:28,165 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:28,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 03:02:28,166 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:28,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:28,166 INFO L82 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2021-08-29 03:02:28,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:28,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850961657] [2021-08-29 03:02:28,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:28,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:02:28,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:28,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850961657] [2021-08-29 03:02:28,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850961657] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:28,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:28,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:28,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053064260] [2021-08-29 03:02:28,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:28,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:28,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:28,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:28,229 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:28,472 INFO L93 Difference]: Finished difference Result 328 states and 496 transitions. [2021-08-29 03:02:28,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:28,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 67 [2021-08-29 03:02:28,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:28,474 INFO L225 Difference]: With dead ends: 328 [2021-08-29 03:02:28,474 INFO L226 Difference]: Without dead ends: 193 [2021-08-29 03:02:28,474 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:28,475 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.14ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.98ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:28,476 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 377 Unknown, 0 Unchecked, 1.14ms Time], IncrementalHoareTripleChecker [33 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 229.98ms Time] [2021-08-29 03:02:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-08-29 03:02:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2021-08-29 03:02:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4184782608695652) internal successors, (261), 184 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2021-08-29 03:02:28,485 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 67 [2021-08-29 03:02:28,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:28,485 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2021-08-29 03:02:28,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2021-08-29 03:02:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-29 03:02:28,488 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:28,488 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:28,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 03:02:28,488 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:28,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:28,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1434615126, now seen corresponding path program 1 times [2021-08-29 03:02:28,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:28,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884361596] [2021-08-29 03:02:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:28,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:02:28,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:28,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884361596] [2021-08-29 03:02:28,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884361596] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:28,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:28,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:28,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682223025] [2021-08-29 03:02:28,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:28,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:28,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:28,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:28,552 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:28,746 INFO L93 Difference]: Finished difference Result 383 states and 548 transitions. [2021-08-29 03:02:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 67 [2021-08-29 03:02:28,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:28,748 INFO L225 Difference]: With dead ends: 383 [2021-08-29 03:02:28,748 INFO L226 Difference]: Without dead ends: 208 [2021-08-29 03:02:28,749 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:28,749 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.50ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:28,750 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 365 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 183.50ms Time] [2021-08-29 03:02:28,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-08-29 03:02:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2021-08-29 03:02:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.4039408866995073) internal successors, (285), 203 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 285 transitions. [2021-08-29 03:02:28,758 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 285 transitions. Word has length 67 [2021-08-29 03:02:28,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:28,759 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 285 transitions. [2021-08-29 03:02:28,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 285 transitions. [2021-08-29 03:02:28,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-29 03:02:28,760 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:28,761 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:28,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 03:02:28,761 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:28,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1023824768, now seen corresponding path program 1 times [2021-08-29 03:02:28,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:28,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745111456] [2021-08-29 03:02:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:28,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-08-29 03:02:28,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:28,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745111456] [2021-08-29 03:02:28,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745111456] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:28,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:28,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:28,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785560959] [2021-08-29 03:02:28,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:28,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:28,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:28,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:28,811 INFO L87 Difference]: Start difference. First operand 204 states and 285 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) [2021-08-29 03:02:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:29,023 INFO L93 Difference]: Finished difference Result 422 states and 598 transitions. [2021-08-29 03:02:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:29,023 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 83 [2021-08-29 03:02:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:29,025 INFO L225 Difference]: With dead ends: 422 [2021-08-29 03:02:29,025 INFO L226 Difference]: Without dead ends: 228 [2021-08-29 03:02:29,025 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,026 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 197.42ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:29,026 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 368 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [13 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 197.42ms Time] [2021-08-29 03:02:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-08-29 03:02:29,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2021-08-29 03:02:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 224 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) [2021-08-29 03:02:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2021-08-29 03:02:29,034 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 311 transitions. Word has length 83 [2021-08-29 03:02:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:29,035 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 311 transitions. [2021-08-29 03:02:29,035 INFO L471 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) [2021-08-29 03:02:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 311 transitions. [2021-08-29 03:02:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-08-29 03:02:29,037 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:29,037 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:29,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 03:02:29,037 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:29,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:29,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2021-08-29 03:02:29,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:29,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296977764] [2021-08-29 03:02:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:29,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-29 03:02:29,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:29,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296977764] [2021-08-29 03:02:29,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296977764] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:29,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:29,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:29,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377021964] [2021-08-29 03:02:29,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:29,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,091 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:29,357 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2021-08-29 03:02:29,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:29,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 103 [2021-08-29 03:02:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:29,360 INFO L225 Difference]: With dead ends: 652 [2021-08-29 03:02:29,360 INFO L226 Difference]: Without dead ends: 437 [2021-08-29 03:02:29,360 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,361 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 198.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.20ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 249.77ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:29,361 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 0 Invalid, 379 Unknown, 0 Unchecked, 1.20ms Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 249.77ms Time] [2021-08-29 03:02:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-08-29 03:02:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2021-08-29 03:02:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.3761467889908257) internal successors, (600), 436 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 600 transitions. [2021-08-29 03:02:29,382 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 600 transitions. Word has length 103 [2021-08-29 03:02:29,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:29,383 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 600 transitions. [2021-08-29 03:02:29,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 600 transitions. [2021-08-29 03:02:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-08-29 03:02:29,386 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:29,386 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:29,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 03:02:29,387 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:29,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:29,389 INFO L82 PathProgramCache]: Analyzing trace with hash -713589126, now seen corresponding path program 1 times [2021-08-29 03:02:29,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:29,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418505998] [2021-08-29 03:02:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:29,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-08-29 03:02:29,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:29,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418505998] [2021-08-29 03:02:29,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418505998] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:29,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:29,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:29,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179577808] [2021-08-29 03:02:29,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:29,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:29,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,473 INFO L87 Difference]: Start difference. First operand 437 states and 600 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:29,663 INFO L93 Difference]: Finished difference Result 885 states and 1214 transitions. [2021-08-29 03:02:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:29,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 103 [2021-08-29 03:02:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:29,665 INFO L225 Difference]: With dead ends: 885 [2021-08-29 03:02:29,665 INFO L226 Difference]: Without dead ends: 458 [2021-08-29 03:02:29,666 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,666 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175.64ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:29,667 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 350 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 175.64ms Time] [2021-08-29 03:02:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-08-29 03:02:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2021-08-29 03:02:29,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 1.3719912472647702) internal successors, (627), 457 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 627 transitions. [2021-08-29 03:02:29,678 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 627 transitions. Word has length 103 [2021-08-29 03:02:29,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:29,678 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 627 transitions. [2021-08-29 03:02:29,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 627 transitions. [2021-08-29 03:02:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-29 03:02:29,680 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:29,680 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:29,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 03:02:29,681 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:29,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:29,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1034569449, now seen corresponding path program 1 times [2021-08-29 03:02:29,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:29,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112385355] [2021-08-29 03:02:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:29,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-08-29 03:02:29,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:29,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112385355] [2021-08-29 03:02:29,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112385355] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:29,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:29,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:29,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455248669] [2021-08-29 03:02:29,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:29,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:29,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,749 INFO L87 Difference]: Start difference. First operand 458 states and 627 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:29,937 INFO L93 Difference]: Finished difference Result 932 states and 1274 transitions. [2021-08-29 03:02:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 104 [2021-08-29 03:02:29,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:29,939 INFO L225 Difference]: With dead ends: 932 [2021-08-29 03:02:29,939 INFO L226 Difference]: Without dead ends: 484 [2021-08-29 03:02:29,940 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:29,941 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.09ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:29,941 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 322 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 174.09ms Time] [2021-08-29 03:02:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-08-29 03:02:29,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2021-08-29 03:02:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.3664596273291925) internal successors, (660), 483 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 660 transitions. [2021-08-29 03:02:29,953 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 660 transitions. Word has length 104 [2021-08-29 03:02:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:29,954 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 660 transitions. [2021-08-29 03:02:29,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 660 transitions. [2021-08-29 03:02:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-29 03:02:29,955 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:29,955 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:29,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 03:02:29,956 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:29,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:29,957 INFO L82 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2021-08-29 03:02:29,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:29,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808004622] [2021-08-29 03:02:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:29,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-08-29 03:02:30,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:30,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808004622] [2021-08-29 03:02:30,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808004622] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:30,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:30,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:30,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431838216] [2021-08-29 03:02:30,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:30,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:30,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:30,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:30,022 INFO L87 Difference]: Start difference. First operand 484 states and 660 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:30,300 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2021-08-29 03:02:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 105 [2021-08-29 03:02:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:30,304 INFO L225 Difference]: With dead ends: 699 [2021-08-29 03:02:30,304 INFO L226 Difference]: Without dead ends: 697 [2021-08-29 03:02:30,304 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:30,305 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 189.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 253.52ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:30,305 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 325 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [7 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 253.52ms Time] [2021-08-29 03:02:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-08-29 03:02:30,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2021-08-29 03:02:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 1.3721264367816093) internal successors, (955), 696 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2021-08-29 03:02:30,324 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 105 [2021-08-29 03:02:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:30,324 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2021-08-29 03:02:30,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,324 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2021-08-29 03:02:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-08-29 03:02:30,326 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:30,327 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:30,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 03:02:30,327 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:30,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:30,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2021-08-29 03:02:30,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:30,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090325822] [2021-08-29 03:02:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:30,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-08-29 03:02:30,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:30,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090325822] [2021-08-29 03:02:30,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090325822] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:30,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:30,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:30,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011890668] [2021-08-29 03:02:30,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:30,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:30,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:30,387 INFO L87 Difference]: Start difference. First operand 697 states and 955 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:30,619 INFO L93 Difference]: Finished difference Result 1508 states and 2127 transitions. [2021-08-29 03:02:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:30,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-08-29 03:02:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:30,623 INFO L225 Difference]: With dead ends: 1508 [2021-08-29 03:02:30,623 INFO L226 Difference]: Without dead ends: 844 [2021-08-29 03:02:30,624 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:30,624 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.93ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:30,624 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [42 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 212.93ms Time] [2021-08-29 03:02:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-08-29 03:02:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 814. [2021-08-29 03:02:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4071340713407134) internal successors, (1144), 813 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1144 transitions. [2021-08-29 03:02:30,642 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1144 transitions. Word has length 173 [2021-08-29 03:02:30,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:30,642 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1144 transitions. [2021-08-29 03:02:30,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1144 transitions. [2021-08-29 03:02:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-08-29 03:02:30,645 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:30,645 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 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] [2021-08-29 03:02:30,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 03:02:30,646 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:30,646 INFO L82 PathProgramCache]: Analyzing trace with hash -598161639, now seen corresponding path program 2 times [2021-08-29 03:02:30,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:30,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266009353] [2021-08-29 03:02:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:30,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-08-29 03:02:30,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:30,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266009353] [2021-08-29 03:02:30,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266009353] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:30,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:30,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:30,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593900453] [2021-08-29 03:02:30,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:30,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:30,684 INFO L87 Difference]: Start difference. First operand 814 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:30,933 INFO L93 Difference]: Finished difference Result 1870 states and 2708 transitions. [2021-08-29 03:02:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:30,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-08-29 03:02:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:30,937 INFO L225 Difference]: With dead ends: 1870 [2021-08-29 03:02:30,937 INFO L226 Difference]: Without dead ends: 1041 [2021-08-29 03:02:30,938 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:30,938 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 93 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 220.80ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:30,939 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 0 Invalid, 351 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [41 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 220.80ms Time] [2021-08-29 03:02:30,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-08-29 03:02:30,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1003. [2021-08-29 03:02:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3932135728542914) internal successors, (1396), 1002 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1396 transitions. [2021-08-29 03:02:30,959 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1396 transitions. Word has length 185 [2021-08-29 03:02:30,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:30,959 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1396 transitions. [2021-08-29 03:02:30,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:30,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1396 transitions. [2021-08-29 03:02:30,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-08-29 03:02:30,962 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:30,964 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-08-29 03:02:30,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 03:02:30,964 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:30,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:30,965 INFO L82 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2021-08-29 03:02:30,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:30,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234190046] [2021-08-29 03:02:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:30,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-08-29 03:02:31,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:31,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234190046] [2021-08-29 03:02:31,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234190046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:31,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:31,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:31,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464049560] [2021-08-29 03:02:31,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:31,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:31,041 INFO L87 Difference]: Start difference. First operand 1003 states and 1396 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) [2021-08-29 03:02:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:31,406 INFO L93 Difference]: Finished difference Result 2282 states and 3180 transitions. [2021-08-29 03:02:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:31,407 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 194 [2021-08-29 03:02:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:31,411 INFO L225 Difference]: With dead ends: 2282 [2021-08-29 03:02:31,411 INFO L226 Difference]: Without dead ends: 1315 [2021-08-29 03:02:31,413 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:31,413 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 111 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 269.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 332.33ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:31,414 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 0 Invalid, 471 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [0 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 332.33ms Time] [2021-08-29 03:02:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2021-08-29 03:02:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1315. [2021-08-29 03:02:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1314 states have (on average 1.39117199391172) internal successors, (1828), 1314 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:31,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1828 transitions. [2021-08-29 03:02:31,443 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1828 transitions. Word has length 194 [2021-08-29 03:02:31,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:31,443 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1828 transitions. [2021-08-29 03:02:31,444 INFO L471 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) [2021-08-29 03:02:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1828 transitions. [2021-08-29 03:02:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-08-29 03:02:31,447 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:31,447 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:31,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 03:02:31,448 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:31,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:31,448 INFO L82 PathProgramCache]: Analyzing trace with hash -915330113, now seen corresponding path program 1 times [2021-08-29 03:02:31,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:31,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487752201] [2021-08-29 03:02:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:31,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-08-29 03:02:31,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:02:31,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487752201] [2021-08-29 03:02:31,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487752201] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:31,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:31,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:02:31,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682243964] [2021-08-29 03:02:31,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:31,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:02:31,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:31,490 INFO L87 Difference]: Start difference. First operand 1315 states and 1828 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:31,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:31,798 INFO L93 Difference]: Finished difference Result 3583 states and 5032 transitions. [2021-08-29 03:02:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:31,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 196 [2021-08-29 03:02:31,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:31,807 INFO L225 Difference]: With dead ends: 3583 [2021-08-29 03:02:31,807 INFO L226 Difference]: Without dead ends: 2325 [2021-08-29 03:02:31,809 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:31,809 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 105 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 203.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 262.24ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:31,810 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 0 Invalid, 449 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 262.24ms Time] [2021-08-29 03:02:31,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2021-08-29 03:02:31,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2323. [2021-08-29 03:02:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2323 states, 2322 states have (on average 1.4061154177433248) internal successors, (3265), 2322 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3265 transitions. [2021-08-29 03:02:31,864 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3265 transitions. Word has length 196 [2021-08-29 03:02:31,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:31,865 INFO L470 AbstractCegarLoop]: Abstraction has 2323 states and 3265 transitions. [2021-08-29 03:02:31,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3265 transitions. [2021-08-29 03:02:31,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-08-29 03:02:31,869 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:31,869 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-08-29 03:02:31,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 03:02:31,869 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:31,870 INFO L82 PathProgramCache]: Analyzing trace with hash 342847369, now seen corresponding path program 1 times [2021-08-29 03:02:31,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:02:31,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466141589] [2021-08-29 03:02:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:31,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:02:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:02:31,905 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:02:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:02:32,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 03:02:32,020 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:02:32,021 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:02:32,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 03:02:32,027 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:02:32,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:02:32 BoogieIcfgContainer [2021-08-29 03:02:32,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:02:32,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:02:32,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:02:32,125 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:02:32,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:02:26" (3/4) ... [2021-08-29 03:02:32,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 03:02:32,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:02:32,128 INFO L158 Benchmark]: Toolchain (without parser) took 6493.59ms. Allocated memory was 50.3MB in the beginning and 111.1MB in the end (delta: 60.8MB). Free memory was 27.1MB in the beginning and 48.5MB in the end (delta: -21.4MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2021-08-29 03:02:32,129 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:02:32,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.56ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 27.0MB in the beginning and 44.0MB in the end (delta: -17.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-08-29 03:02:32,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.55ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 41.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:02:32,129 INFO L158 Benchmark]: Boogie Preprocessor took 54.69ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 39.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:02:32,130 INFO L158 Benchmark]: RCFGBuilder took 437.31ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 35.4MB in the end (delta: 3.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2021-08-29 03:02:32,130 INFO L158 Benchmark]: TraceAbstraction took 5532.40ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 34.9MB in the beginning and 48.5MB in the end (delta: -13.6MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2021-08-29 03:02:32,131 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 111.1MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:02:32,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.56ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 27.0MB in the beginning and 44.0MB in the end (delta: -17.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.55ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 41.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.69ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 39.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.31ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 35.4MB in the end (delta: 3.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5532.40ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 34.9MB in the beginning and 48.5MB in the end (delta: -13.6MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 111.1MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseXor at line 358. Possible FailurePath: [L619] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int __retres59 ; [L68] s__state = 12292 [L69] blastFlag = 0 [L70] tmp = __VERIFIER_nondet_int() [L71] cb = 0 [L72] ret = -1 [L73] skip = 0 [L74] tmp___0 = 0 [L75] COND TRUE s__info_callback != 0 [L76] cb = s__info_callback [L84] s__in_handshake = s__in_handshake + 1 [L85] COND FALSE !(tmp___1 - 12288) [L95] COND TRUE 1 [L97] state = s__state [L98] COND TRUE s__state == 12292 [L201] s__new_session = 1 [L202] s__state = 4096 [L203] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L208] s__server = 0 [L209] COND TRUE cb != 0 [L214] COND FALSE !(s__version - 65280 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L239] COND FALSE !(! tmp___4) [L245] COND FALSE !(! tmp___5) [L251] s__state = 4368 [L252] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L253] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND TRUE blastFlag == 0 [L260] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 1 [L285] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND TRUE blastFlag == 2 [L308] blastFlag = 3 [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND TRUE blastFlag == 3 [L326] blastFlag = 4 [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND FALSE !(blastFlag == 5) [L353] COND FALSE !(ret <= 0) [L358] s__state = ag_X ^ ag_Y [L359] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND FALSE !(blastFlag == 0) [L262] COND TRUE blastFlag == 4 [L263] blastFlag = 5 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND FALSE !(blastFlag == 1) [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND FALSE !(blastFlag == 2) [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND FALSE !(blastFlag == 3) [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND TRUE blastFlag == 5 [L610] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5380.50ms, OverallIterations: 15, TraceHistogramMax: 11, EmptinessCheckTime: 40.57ms, AutomataDifference: 3787.91ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.14ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 812 SdHoareTripleChecker+Valid, 3309.15ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 812 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2570.83ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1502 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5032 IncrementalHoareTripleChecker+Invalid, 5205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 0 mSDtfsCounter, 5032 mSolverCounterSat, 17.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.10ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2323occurred in iteration=14, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 250.32ms AutomataMinimizationTime, 14 MinimizatonAttempts, 93 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 66.90ms SsaConstructionTime, 277.01ms SatisfiabilityAnalysisTime, 583.67ms InterpolantComputationTime, 1686 NumberOfCodeBlocks, 1686 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1476 ConstructedInterpolants, 0 QuantifiedInterpolants, 2960 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 2791/2791 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 03:02:32,179 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:02:33,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:02:33,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:02:33,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:02:33,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:02:34,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:02:34,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:02:34,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:02:34,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:02:34,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:02:34,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:02:34,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:02:34,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:02:34,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:02:34,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:02:34,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:02:34,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:02:34,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:02:34,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:02:34,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:02:34,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:02:34,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:02:34,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:02:34,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:02:34,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:02:34,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:02:34,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:02:34,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:02:34,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:02:34,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:02:34,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:02:34,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:02:34,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:02:34,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:02:34,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:02:34,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:02:34,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:02:34,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:02:34,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:02:34,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:02:34,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:02:34,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 03:02:34,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:02:34,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:02:34,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:02:34,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:02:34,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:02:34,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:02:34,052 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:02:34,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:02:34,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:02:34,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:02:34,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:02:34,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:02:34,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:02:34,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:02:34,054 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 03:02:34,054 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 03:02:34,054 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:02:34,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:02:34,055 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:02:34,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:02:34,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:02:34,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:02:34,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:02:34,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:02:34,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:02:34,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:02:34,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:02:34,056 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 03:02:34,056 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 03:02:34,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:02:34,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:02:34,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 03:02:34,057 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 310063ef643a90e947dd66ba142cc8ae546f077a [2021-08-29 03:02:34,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:02:34,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:02:34,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:02:34,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:02:34,366 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:02:34,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-08-29 03:02:34,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1b0db54/a670152008bb44249080316e3a5871e4/FLAGf8ebf8223 [2021-08-29 03:02:34,838 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:02:34,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-08-29 03:02:34,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1b0db54/a670152008bb44249080316e3a5871e4/FLAGf8ebf8223 [2021-08-29 03:02:34,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1b0db54/a670152008bb44249080316e3a5871e4 [2021-08-29 03:02:34,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:02:34,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:02:34,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:02:34,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:02:34,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:02:34,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:02:34" (1/1) ... [2021-08-29 03:02:34,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e90c944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:34, skipping insertion in model container [2021-08-29 03:02:34,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:02:34" (1/1) ... [2021-08-29 03:02:34,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:02:34,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:02:35,099 WARN L228 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_2.BV.c.cil-1a.c[37270,37283] [2021-08-29 03:02:35,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:02:35,116 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:02:35,199 WARN L228 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_2.BV.c.cil-1a.c[37270,37283] [2021-08-29 03:02:35,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:02:35,213 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:02:35,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35 WrapperNode [2021-08-29 03:02:35,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:02:35,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:02:35,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:02:35,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:02:35,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:02:35,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:02:35,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:02:35,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:02:35,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:02:35,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:02:35,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:02:35,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:02:35,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (1/1) ... [2021-08-29 03:02:35,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:02:35,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:02:35,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 03:02:35,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 03:02:35,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 03:02:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:02:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:02:35,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:02:35,459 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:02:35,653 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:02:35,654 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:02:35,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:02:35,661 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:02:35,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:02:35 BoogieIcfgContainer [2021-08-29 03:02:35,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:02:35,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:02:35,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:02:35,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:02:35,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:02:34" (1/3) ... [2021-08-29 03:02:35,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd3b63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:02:35, skipping insertion in model container [2021-08-29 03:02:35,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:02:35" (2/3) ... [2021-08-29 03:02:35,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd3b63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:02:35, skipping insertion in model container [2021-08-29 03:02:35,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:02:35" (3/3) ... [2021-08-29 03:02:35,670 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-08-29 03:02:35,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:02:35,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:02:35,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:02:35,718 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 03:02:35,719 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:02:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:02:35,739 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:35,740 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:35,741 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:35,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-08-29 03:02:35,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:35,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220440966] [2021-08-29 03:02:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:35,756 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:35,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:35,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:35,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 03:02:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:35,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:35,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:02:36,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:02:36,165 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:36,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220440966] [2021-08-29 03:02:36,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220440966] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:36,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:36,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:36,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113813418] [2021-08-29 03:02:36,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:36,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:36,209 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:36,607 INFO L93 Difference]: Finished difference Result 246 states and 421 transitions. [2021-08-29 03:02:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:36,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-08-29 03:02:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:36,617 INFO L225 Difference]: With dead ends: 246 [2021-08-29 03:02:36,617 INFO L226 Difference]: Without dead ends: 112 [2021-08-29 03:02:36,620 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:36,623 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 264.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.27ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 343.24ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:36,623 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 410 Unknown, 0 Unchecked, 4.27ms Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 343.24ms Time] [2021-08-29 03:02:36,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-08-29 03:02:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-08-29 03:02:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:36,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-08-29 03:02:36,656 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-08-29 03:02:36,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:36,656 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-08-29 03:02:36,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-08-29 03:02:36,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-29 03:02:36,658 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:36,658 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:36,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:36,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:36,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:36,869 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-08-29 03:02:36,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:36,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039882335] [2021-08-29 03:02:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:36,870 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:36,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:36,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:36,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 03:02:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:36,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:36,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:02:37,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:02:37,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:37,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039882335] [2021-08-29 03:02:37,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039882335] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:37,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:37,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:37,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420133759] [2021-08-29 03:02:37,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:37,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:37,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:37,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:37,108 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:37,365 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-08-29 03:02:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:37,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-08-29 03:02:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:37,370 INFO L225 Difference]: With dead ends: 233 [2021-08-29 03:02:37,370 INFO L226 Difference]: Without dead ends: 131 [2021-08-29 03:02:37,371 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:37,372 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.24ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 239.12ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:37,373 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 339 Unknown, 0 Unchecked, 1.24ms Time], IncrementalHoareTripleChecker [7 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 239.12ms Time] [2021-08-29 03:02:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-29 03:02:37,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2021-08-29 03:02:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-08-29 03:02:37,387 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-08-29 03:02:37,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:37,388 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-08-29 03:02:37,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-08-29 03:02:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-29 03:02:37,389 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:37,390 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:37,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 03:02:37,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:37,600 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:37,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:37,600 INFO L82 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2021-08-29 03:02:37,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:37,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736148993] [2021-08-29 03:02:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:37,604 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:37,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:37,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:37,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 03:02:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:37,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:37,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 03:02:37,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:37,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 03:02:37,852 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:37,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736148993] [2021-08-29 03:02:37,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736148993] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:37,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:37,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:37,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793149042] [2021-08-29 03:02:37,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:37,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:37,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:37,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:37,858 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:38,130 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2021-08-29 03:02:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:38,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 50 [2021-08-29 03:02:38,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:38,131 INFO L225 Difference]: With dead ends: 265 [2021-08-29 03:02:38,131 INFO L226 Difference]: Without dead ends: 148 [2021-08-29 03:02:38,132 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:38,133 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 204.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 259.74ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:38,133 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 356 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 259.74ms Time] [2021-08-29 03:02:38,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-08-29 03:02:38,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2021-08-29 03:02:38,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-08-29 03:02:38,142 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-08-29 03:02:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:38,143 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-08-29 03:02:38,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-08-29 03:02:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-29 03:02:38,145 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:38,145 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:38,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:38,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:38,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:38,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:38,359 INFO L82 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2021-08-29 03:02:38,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:38,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002478796] [2021-08-29 03:02:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:38,360 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:38,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:38,361 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:38,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 03:02:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:38,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:38,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:02:38,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:02:38,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:38,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002478796] [2021-08-29 03:02:38,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002478796] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:38,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:38,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:38,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401508214] [2021-08-29 03:02:38,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:38,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:38,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:38,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:38,672 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:38,996 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2021-08-29 03:02:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 67 [2021-08-29 03:02:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:38,998 INFO L225 Difference]: With dead ends: 349 [2021-08-29 03:02:38,999 INFO L226 Difference]: Without dead ends: 215 [2021-08-29 03:02:38,999 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.08ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:39,000 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 150 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 247.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.08ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 306.70ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:39,000 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 0 Invalid, 453 Unknown, 0 Unchecked, 2.08ms Time], IncrementalHoareTripleChecker [65 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 306.70ms Time] [2021-08-29 03:02:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-08-29 03:02:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2021-08-29 03:02:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.441747572815534) internal successors, (297), 206 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2021-08-29 03:02:39,011 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2021-08-29 03:02:39,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:39,011 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2021-08-29 03:02:39,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2021-08-29 03:02:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-29 03:02:39,013 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:39,013 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:39,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:39,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:39,223 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:39,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:39,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1528022105, now seen corresponding path program 1 times [2021-08-29 03:02:39,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:39,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120495860] [2021-08-29 03:02:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:39,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:39,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:39,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:39,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 03:02:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:39,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:39,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:02:39,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:02:39,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:39,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120495860] [2021-08-29 03:02:39,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120495860] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:39,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:39,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:39,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605550328] [2021-08-29 03:02:39,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:39,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:39,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:39,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:39,524 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:39,756 INFO L93 Difference]: Finished difference Result 427 states and 620 transitions. [2021-08-29 03:02:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:39,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 68 [2021-08-29 03:02:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:39,758 INFO L225 Difference]: With dead ends: 427 [2021-08-29 03:02:39,758 INFO L226 Difference]: Without dead ends: 230 [2021-08-29 03:02:39,758 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:39,759 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 220.43ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:39,760 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 365 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 220.43ms Time] [2021-08-29 03:02:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-08-29 03:02:39,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-08-29 03:02:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4266666666666667) internal successors, (321), 225 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2021-08-29 03:02:39,768 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2021-08-29 03:02:39,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:39,780 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2021-08-29 03:02:39,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:39,781 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2021-08-29 03:02:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-08-29 03:02:39,782 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:39,785 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:39,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:39,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:39,994 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:39,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1678422895, now seen corresponding path program 1 times [2021-08-29 03:02:39,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:39,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942849177] [2021-08-29 03:02:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:39,996 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:39,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:40,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 03:02:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:40,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:40,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-08-29 03:02:40,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:40,335 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-08-29 03:02:40,336 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:40,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942849177] [2021-08-29 03:02:40,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942849177] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:40,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:40,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:40,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563608461] [2021-08-29 03:02:40,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:40,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:40,338 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:40,583 INFO L93 Difference]: Finished difference Result 466 states and 670 transitions. [2021-08-29 03:02:40,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:40,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-08-29 03:02:40,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:40,585 INFO L225 Difference]: With dead ends: 466 [2021-08-29 03:02:40,585 INFO L226 Difference]: Without dead ends: 250 [2021-08-29 03:02:40,585 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:40,586 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.91ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:40,587 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 368 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [13 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 233.91ms Time] [2021-08-29 03:02:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-08-29 03:02:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2021-08-29 03:02:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-08-29 03:02:40,593 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2021-08-29 03:02:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:40,594 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-08-29 03:02:40,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-08-29 03:02:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-08-29 03:02:40,595 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:40,595 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:40,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:40,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:40,796 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:40,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2021-08-29 03:02:40,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:40,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013199043] [2021-08-29 03:02:40,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:40,797 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:40,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:40,798 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:40,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-29 03:02:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:40,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:40,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-29 03:02:41,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-29 03:02:41,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:41,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013199043] [2021-08-29 03:02:41,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013199043] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:41,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:41,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:41,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556447365] [2021-08-29 03:02:41,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:41,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:41,234 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:41,592 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2021-08-29 03:02:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:41,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 103 [2021-08-29 03:02:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:41,595 INFO L225 Difference]: With dead ends: 743 [2021-08-29 03:02:41,596 INFO L226 Difference]: Without dead ends: 506 [2021-08-29 03:02:41,596 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.36ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:41,597 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 350 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 258.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 337.47ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:41,597 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 0 Invalid, 414 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [10 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 337.47ms Time] [2021-08-29 03:02:41,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-08-29 03:02:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-08-29 03:02:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.39009900990099) internal successors, (702), 505 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2021-08-29 03:02:41,610 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2021-08-29 03:02:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:41,610 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2021-08-29 03:02:41,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:41,610 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2021-08-29 03:02:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-08-29 03:02:41,612 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:41,612 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:41,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:41,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:41,822 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:41,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:41,823 INFO L82 PathProgramCache]: Analyzing trace with hash -847602632, now seen corresponding path program 1 times [2021-08-29 03:02:41,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:41,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524087035] [2021-08-29 03:02:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:41,824 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:41,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:41,825 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:41,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-29 03:02:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:41,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:41,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-08-29 03:02:42,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-08-29 03:02:42,233 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:42,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524087035] [2021-08-29 03:02:42,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524087035] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:42,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:42,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:42,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275286676] [2021-08-29 03:02:42,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:42,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:42,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:42,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:42,234 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:42,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:42,465 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2021-08-29 03:02:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 103 [2021-08-29 03:02:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:42,467 INFO L225 Difference]: With dead ends: 1023 [2021-08-29 03:02:42,468 INFO L226 Difference]: Without dead ends: 527 [2021-08-29 03:02:42,468 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:42,469 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 216.71ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:42,469 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 350 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 216.71ms Time] [2021-08-29 03:02:42,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-08-29 03:02:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-08-29 03:02:42,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3859315589353611) internal successors, (729), 526 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:42,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2021-08-29 03:02:42,482 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 103 [2021-08-29 03:02:42,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:42,482 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2021-08-29 03:02:42,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2021-08-29 03:02:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-29 03:02:42,484 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:42,484 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:42,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:42,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:42,698 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:42,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:42,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1168582955, now seen corresponding path program 1 times [2021-08-29 03:02:42,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:42,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434406862] [2021-08-29 03:02:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:42,699 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:42,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:42,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:42,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-29 03:02:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:42,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:42,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-08-29 03:02:42,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-08-29 03:02:43,112 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:43,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434406862] [2021-08-29 03:02:43,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434406862] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:43,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:43,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:02:43,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412962593] [2021-08-29 03:02:43,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:02:43,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:43,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:02:43,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:43,114 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:43,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:43,326 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2021-08-29 03:02:43,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:02:43,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 104 [2021-08-29 03:02:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:43,328 INFO L225 Difference]: With dead ends: 1070 [2021-08-29 03:02:43,328 INFO L226 Difference]: Without dead ends: 553 [2021-08-29 03:02:43,329 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:02:43,330 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.43ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:43,330 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 322 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 196.43ms Time] [2021-08-29 03:02:43,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-08-29 03:02:43,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-08-29 03:02:43,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.3804347826086956) internal successors, (762), 552 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2021-08-29 03:02:43,343 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2021-08-29 03:02:43,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:43,343 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2021-08-29 03:02:43,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2021-08-29 03:02:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-29 03:02:43,345 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:43,345 INFO L513 BasicCegarLoop]: 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] [2021-08-29 03:02:43,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:43,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:43,555 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2021-08-29 03:02:43,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:43,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627843356] [2021-08-29 03:02:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:43,556 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:43,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:43,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:43,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-29 03:02:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:43,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:43,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:43,777 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-08-29 03:02:43,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-08-29 03:02:43,934 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:43,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627843356] [2021-08-29 03:02:43,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627843356] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:43,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:43,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:43,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204689683] [2021-08-29 03:02:43,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:43,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:43,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:43,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:43,935 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:44,427 INFO L93 Difference]: Finished difference Result 1520 states and 2113 transitions. [2021-08-29 03:02:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 105 [2021-08-29 03:02:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:44,431 INFO L225 Difference]: With dead ends: 1520 [2021-08-29 03:02:44,431 INFO L226 Difference]: Without dead ends: 1003 [2021-08-29 03:02:44,432 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.67ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:44,433 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 260 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 366.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.77ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 461.79ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:44,433 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 0 Invalid, 632 Unknown, 0 Unchecked, 1.77ms Time], IncrementalHoareTripleChecker [12 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 461.79ms Time] [2021-08-29 03:02:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2021-08-29 03:02:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2021-08-29 03:02:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3892215568862276) internal successors, (1392), 1002 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2021-08-29 03:02:44,457 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 105 [2021-08-29 03:02:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:44,457 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2021-08-29 03:02:44,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:44,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2021-08-29 03:02:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-08-29 03:02:44,460 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:44,461 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:44,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:44,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:44,670 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:44,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2021-08-29 03:02:44,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:44,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909034479] [2021-08-29 03:02:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:44,671 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:44,672 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:44,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-29 03:02:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:44,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:44,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-08-29 03:02:45,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-08-29 03:02:45,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:45,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909034479] [2021-08-29 03:02:45,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909034479] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:45,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:45,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:45,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901366230] [2021-08-29 03:02:45,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:45,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:45,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:45,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:45,276 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:45,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:45,614 INFO L93 Difference]: Finished difference Result 2091 states and 2938 transitions. [2021-08-29 03:02:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:45,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 173 [2021-08-29 03:02:45,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:45,618 INFO L225 Difference]: With dead ends: 2091 [2021-08-29 03:02:45,618 INFO L226 Difference]: Without dead ends: 1124 [2021-08-29 03:02:45,619 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.17ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:45,620 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 153 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 229.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.49ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 304.66ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:45,620 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 0 Invalid, 466 Unknown, 0 Unchecked, 1.49ms Time], IncrementalHoareTripleChecker [39 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 304.66ms Time] [2021-08-29 03:02:45,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2021-08-29 03:02:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1095. [2021-08-29 03:02:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.3711151736745886) internal successors, (1500), 1094 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1500 transitions. [2021-08-29 03:02:45,645 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1500 transitions. Word has length 173 [2021-08-29 03:02:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:45,645 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1500 transitions. [2021-08-29 03:02:45,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1500 transitions. [2021-08-29 03:02:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-08-29 03:02:45,649 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:45,649 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-08-29 03:02:45,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-08-29 03:02:45,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:45,861 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:45,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:45,862 INFO L82 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2021-08-29 03:02:45,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:45,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181367294] [2021-08-29 03:02:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:45,863 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:45,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:45,864 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:45,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-29 03:02:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:45,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:02:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 456 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-08-29 03:02:46,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 440 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-08-29 03:02:46,706 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:46,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181367294] [2021-08-29 03:02:46,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181367294] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:02:46,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-29 03:02:46,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-08-29 03:02:46,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146831729] [2021-08-29 03:02:46,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 03:02:46,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 03:02:46,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:02:46,709 INFO L87 Difference]: Start difference. First operand 1095 states and 1500 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:47,500 INFO L93 Difference]: Finished difference Result 2572 states and 3550 transitions. [2021-08-29 03:02:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-29 03:02:47,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 194 [2021-08-29 03:02:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:47,506 INFO L225 Difference]: With dead ends: 2572 [2021-08-29 03:02:47,507 INFO L226 Difference]: Without dead ends: 1513 [2021-08-29 03:02:47,509 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 53.75ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-08-29 03:02:47,509 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 803 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 569.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.56ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 706.88ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:47,510 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [803 Valid, 0 Invalid, 1205 Unknown, 0 Unchecked, 4.56ms Time], IncrementalHoareTripleChecker [55 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 706.88ms Time] [2021-08-29 03:02:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2021-08-29 03:02:47,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1404. [2021-08-29 03:02:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 1.3642195295794726) internal successors, (1914), 1403 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1914 transitions. [2021-08-29 03:02:47,541 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1914 transitions. Word has length 194 [2021-08-29 03:02:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:47,542 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 1914 transitions. [2021-08-29 03:02:47,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1914 transitions. [2021-08-29 03:02:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-08-29 03:02:47,546 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:47,546 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:47,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:47,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:47,756 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:47,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1233429647, now seen corresponding path program 1 times [2021-08-29 03:02:47,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:47,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016396549] [2021-08-29 03:02:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:47,757 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:47,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:47,757 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:47,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-29 03:02:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:47,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:47,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-08-29 03:02:48,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-08-29 03:02:48,462 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:48,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016396549] [2021-08-29 03:02:48,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016396549] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:48,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:48,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:48,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156133221] [2021-08-29 03:02:48,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:48,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:48,463 INFO L87 Difference]: Start difference. First operand 1404 states and 1914 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:48,762 INFO L93 Difference]: Finished difference Result 2921 states and 4033 transitions. [2021-08-29 03:02:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:48,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 219 [2021-08-29 03:02:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:48,769 INFO L225 Difference]: With dead ends: 2921 [2021-08-29 03:02:48,769 INFO L226 Difference]: Without dead ends: 1574 [2021-08-29 03:02:48,771 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.43ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:48,771 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 153 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 212.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 272.13ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:48,772 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 0 Invalid, 432 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [45 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 272.13ms Time] [2021-08-29 03:02:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2021-08-29 03:02:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1544. [2021-08-29 03:02:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1543 states have (on average 1.3441348023331172) internal successors, (2074), 1543 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2074 transitions. [2021-08-29 03:02:48,806 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2074 transitions. Word has length 219 [2021-08-29 03:02:48,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:48,806 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 2074 transitions. [2021-08-29 03:02:48,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:48,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2074 transitions. [2021-08-29 03:02:48,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-08-29 03:02:48,810 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:48,811 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 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, 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] [2021-08-29 03:02:48,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:49,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:49,020 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:49,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1201727504, now seen corresponding path program 1 times [2021-08-29 03:02:49,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:49,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765611004] [2021-08-29 03:02:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:49,021 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:49,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:49,022 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:49,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-29 03:02:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:49,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:49,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-29 03:02:49,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-29 03:02:49,720 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:49,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765611004] [2021-08-29 03:02:49,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765611004] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:49,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:49,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:49,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025766157] [2021-08-29 03:02:49,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:49,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:49,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:49,722 INFO L87 Difference]: Start difference. First operand 1544 states and 2074 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:50,013 INFO L93 Difference]: Finished difference Result 3201 states and 4369 transitions. [2021-08-29 03:02:50,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:50,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 230 [2021-08-29 03:02:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:50,019 INFO L225 Difference]: With dead ends: 3201 [2021-08-29 03:02:50,020 INFO L226 Difference]: Without dead ends: 1714 [2021-08-29 03:02:50,022 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.39ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:50,023 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 159 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 201.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 261.94ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:50,023 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 0 Invalid, 439 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [41 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 261.94ms Time] [2021-08-29 03:02:50,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2021-08-29 03:02:50,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1699. [2021-08-29 03:02:50,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1698 states have (on average 1.3244994110718493) internal successors, (2249), 1698 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2249 transitions. [2021-08-29 03:02:50,063 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2249 transitions. Word has length 230 [2021-08-29 03:02:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:50,064 INFO L470 AbstractCegarLoop]: Abstraction has 1699 states and 2249 transitions. [2021-08-29 03:02:50,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:50,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2249 transitions. [2021-08-29 03:02:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-08-29 03:02:50,069 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:50,069 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 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] [2021-08-29 03:02:50,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:50,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:50,278 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1748413006, now seen corresponding path program 1 times [2021-08-29 03:02:50,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:50,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819181265] [2021-08-29 03:02:50,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:50,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:50,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:50,281 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:50,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-29 03:02:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:50,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:50,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-08-29 03:02:50,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-08-29 03:02:50,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:50,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819181265] [2021-08-29 03:02:50,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819181265] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:50,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:50,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:50,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409899193] [2021-08-29 03:02:50,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:50,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:50,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:50,986 INFO L87 Difference]: Start difference. First operand 1699 states and 2249 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:51,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:51,314 INFO L93 Difference]: Finished difference Result 3576 states and 4804 transitions. [2021-08-29 03:02:51,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:51,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 260 [2021-08-29 03:02:51,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:51,322 INFO L225 Difference]: With dead ends: 3576 [2021-08-29 03:02:51,322 INFO L226 Difference]: Without dead ends: 1934 [2021-08-29 03:02:51,325 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.48ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:51,326 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 172 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 227.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.87ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 295.40ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:51,326 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 0 Invalid, 441 Unknown, 0 Unchecked, 0.87ms Time], IncrementalHoareTripleChecker [48 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 295.40ms Time] [2021-08-29 03:02:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2021-08-29 03:02:51,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1884. [2021-08-29 03:02:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1883 states have (on average 1.30323951141795) internal successors, (2454), 1883 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2454 transitions. [2021-08-29 03:02:51,374 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2454 transitions. Word has length 260 [2021-08-29 03:02:51,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:51,375 INFO L470 AbstractCegarLoop]: Abstraction has 1884 states and 2454 transitions. [2021-08-29 03:02:51,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2454 transitions. [2021-08-29 03:02:51,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-08-29 03:02:51,380 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:51,380 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 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] [2021-08-29 03:02:51,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-08-29 03:02:51,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:51,595 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:51,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:51,596 INFO L82 PathProgramCache]: Analyzing trace with hash -541056141, now seen corresponding path program 1 times [2021-08-29 03:02:51,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:51,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841158604] [2021-08-29 03:02:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:51,596 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:51,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:51,597 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:51,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-29 03:02:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:51,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:51,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:52,038 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-08-29 03:02:52,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-08-29 03:02:52,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:52,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841158604] [2021-08-29 03:02:52,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841158604] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:52,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:52,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:52,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837462533] [2021-08-29 03:02:52,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:52,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:52,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:52,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:52,391 INFO L87 Difference]: Start difference. First operand 1884 states and 2454 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:52,924 INFO L93 Difference]: Finished difference Result 7200 states and 9404 transitions. [2021-08-29 03:02:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:52,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 261 [2021-08-29 03:02:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:52,945 INFO L225 Difference]: With dead ends: 7200 [2021-08-29 03:02:52,945 INFO L226 Difference]: Without dead ends: 5373 [2021-08-29 03:02:52,948 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.87ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:52,948 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 262 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 341.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 459.98ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:52,948 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 0 Invalid, 746 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [2 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 459.98ms Time] [2021-08-29 03:02:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2021-08-29 03:02:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5369. [2021-08-29 03:02:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5369 states, 5368 states have (on average 1.305327868852459) internal successors, (7007), 5368 states have internal predecessors, (7007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:53,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5369 states to 5369 states and 7007 transitions. [2021-08-29 03:02:53,088 INFO L78 Accepts]: Start accepts. Automaton has 5369 states and 7007 transitions. Word has length 261 [2021-08-29 03:02:53,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:53,089 INFO L470 AbstractCegarLoop]: Abstraction has 5369 states and 7007 transitions. [2021-08-29 03:02:53,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:53,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5369 states and 7007 transitions. [2021-08-29 03:02:53,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-08-29 03:02:53,100 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:53,100 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 11, 11, 9, 9, 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, 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] [2021-08-29 03:02:53,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:53,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:53,310 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:53,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:53,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1252386761, now seen corresponding path program 1 times [2021-08-29 03:02:53,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:53,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19431508] [2021-08-29 03:02:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:53,312 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:53,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:53,313 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:53,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-29 03:02:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:53,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:53,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-08-29 03:02:53,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-08-29 03:02:54,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:54,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19431508] [2021-08-29 03:02:54,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19431508] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:54,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:54,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:54,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380333638] [2021-08-29 03:02:54,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:54,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:54,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:54,170 INFO L87 Difference]: Start difference. First operand 5369 states and 7007 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:54,536 INFO L93 Difference]: Finished difference Result 10996 states and 14405 transitions. [2021-08-29 03:02:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:54,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 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 285 [2021-08-29 03:02:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:54,553 INFO L225 Difference]: With dead ends: 10996 [2021-08-29 03:02:54,553 INFO L226 Difference]: Without dead ends: 5684 [2021-08-29 03:02:54,558 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.88ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:54,560 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 166 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 221.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.74ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 270.97ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:54,560 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 0 Invalid, 447 Unknown, 0 Unchecked, 0.74ms Time], IncrementalHoareTripleChecker [42 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 270.97ms Time] [2021-08-29 03:02:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2021-08-29 03:02:54,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 5534. [2021-08-29 03:02:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5534 states, 5533 states have (on average 1.2980300018073379) internal successors, (7182), 5533 states have internal predecessors, (7182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5534 states to 5534 states and 7182 transitions. [2021-08-29 03:02:54,730 INFO L78 Accepts]: Start accepts. Automaton has 5534 states and 7182 transitions. Word has length 285 [2021-08-29 03:02:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:54,731 INFO L470 AbstractCegarLoop]: Abstraction has 5534 states and 7182 transitions. [2021-08-29 03:02:54,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5534 states and 7182 transitions. [2021-08-29 03:02:54,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-08-29 03:02:54,741 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:54,741 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 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, 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] [2021-08-29 03:02:54,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:54,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:54,952 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:54,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:54,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1370167796, now seen corresponding path program 1 times [2021-08-29 03:02:54,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:54,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701244170] [2021-08-29 03:02:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:54,953 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:54,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:54,954 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:54,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-29 03:02:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:55,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:55,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:55,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-08-29 03:02:55,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-08-29 03:02:55,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:55,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701244170] [2021-08-29 03:02:55,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701244170] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:55,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:55,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:55,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604337257] [2021-08-29 03:02:55,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:55,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:55,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:55,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:55,842 INFO L87 Difference]: Start difference. First operand 5534 states and 7182 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:56,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:56,206 INFO L93 Difference]: Finished difference Result 11716 states and 15430 transitions. [2021-08-29 03:02:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:56,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2021-08-29 03:02:56,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:56,225 INFO L225 Difference]: With dead ends: 11716 [2021-08-29 03:02:56,225 INFO L226 Difference]: Without dead ends: 6239 [2021-08-29 03:02:56,231 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.95ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:56,231 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 166 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.90ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 272.16ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:56,232 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 0 Invalid, 442 Unknown, 0 Unchecked, 0.90ms Time], IncrementalHoareTripleChecker [48 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 272.16ms Time] [2021-08-29 03:02:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2021-08-29 03:02:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 6089. [2021-08-29 03:02:56,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 1.2807161629434953) internal successors, (7797), 6088 states have internal predecessors, (7797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 7797 transitions. [2021-08-29 03:02:56,397 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 7797 transitions. Word has length 297 [2021-08-29 03:02:56,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:56,398 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 7797 transitions. [2021-08-29 03:02:56,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 7797 transitions. [2021-08-29 03:02:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-08-29 03:02:56,410 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:56,410 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:56,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:56,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:56,621 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:56,621 INFO L82 PathProgramCache]: Analyzing trace with hash 814591708, now seen corresponding path program 1 times [2021-08-29 03:02:56,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:56,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677670894] [2021-08-29 03:02:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:56,622 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:56,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:56,623 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:56,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-29 03:02:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:56,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:02:56,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 757 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:02:57,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 757 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:02:57,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:57,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677670894] [2021-08-29 03:02:57,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677670894] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:02:57,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:02:57,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:02:57,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971619962] [2021-08-29 03:02:57,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:02:57,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:57,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:02:57,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:57,578 INFO L87 Difference]: Start difference. First operand 6089 states and 7797 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:02:57,889 INFO L93 Difference]: Finished difference Result 12871 states and 16735 transitions. [2021-08-29 03:02:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:02:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 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 334 [2021-08-29 03:02:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:02:57,900 INFO L225 Difference]: With dead ends: 12871 [2021-08-29 03:02:57,901 INFO L226 Difference]: Without dead ends: 6839 [2021-08-29 03:02:57,906 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.98ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:02:57,906 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 170 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.66ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 247.09ms IncrementalHoareTripleChecker+Time [2021-08-29 03:02:57,907 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 0 Invalid, 447 Unknown, 0 Unchecked, 0.66ms Time], IncrementalHoareTripleChecker [50 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 247.09ms Time] [2021-08-29 03:02:57,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2021-08-29 03:02:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6704. [2021-08-29 03:02:58,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6704 states, 6703 states have (on average 1.2639116813367148) internal successors, (8472), 6703 states have internal predecessors, (8472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6704 states to 6704 states and 8472 transitions. [2021-08-29 03:02:58,060 INFO L78 Accepts]: Start accepts. Automaton has 6704 states and 8472 transitions. Word has length 334 [2021-08-29 03:02:58,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:02:58,060 INFO L470 AbstractCegarLoop]: Abstraction has 6704 states and 8472 transitions. [2021-08-29 03:02:58,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:02:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6704 states and 8472 transitions. [2021-08-29 03:02:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-08-29 03:02:58,074 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:02:58,074 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:02:58,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-29 03:02:58,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:02:58,286 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:02:58,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:02:58,287 INFO L82 PathProgramCache]: Analyzing trace with hash 562644076, now seen corresponding path program 1 times [2021-08-29 03:02:58,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:02:58,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566867440] [2021-08-29 03:02:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:02:58,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:02:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:02:58,288 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:02:58,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-29 03:02:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:02:58,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:02:58,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:02:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 903 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-08-29 03:02:58,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:02:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 903 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-08-29 03:02:59,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:02:59,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566867440] [2021-08-29 03:02:59,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566867440] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:02:59,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-29 03:02:59,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-08-29 03:02:59,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416389934] [2021-08-29 03:02:59,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:02:59,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:02:59,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:02:59,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:02:59,345 INFO L87 Difference]: Start difference. First operand 6704 states and 8472 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:03:00,477 INFO L93 Difference]: Finished difference Result 21875 states and 27687 transitions. [2021-08-29 03:03:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-29 03:03:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 0 states have call successors, (0), 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 357 [2021-08-29 03:03:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:03:00,503 INFO L225 Difference]: With dead ends: 21875 [2021-08-29 03:03:00,504 INFO L226 Difference]: Without dead ends: 15228 [2021-08-29 03:03:00,511 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.78ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-08-29 03:03:00,512 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 421 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 755.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 946.89ms IncrementalHoareTripleChecker+Time [2021-08-29 03:03:00,512 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 0 Invalid, 1748 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [63 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 946.89ms Time] [2021-08-29 03:03:00,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15228 states. [2021-08-29 03:03:00,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15228 to 9232. [2021-08-29 03:03:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9232 states, 9231 states have (on average 1.2807929801754956) internal successors, (11823), 9231 states have internal predecessors, (11823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9232 states to 9232 states and 11823 transitions. [2021-08-29 03:03:00,741 INFO L78 Accepts]: Start accepts. Automaton has 9232 states and 11823 transitions. Word has length 357 [2021-08-29 03:03:00,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:03:00,742 INFO L470 AbstractCegarLoop]: Abstraction has 9232 states and 11823 transitions. [2021-08-29 03:03:00,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9232 states and 11823 transitions. [2021-08-29 03:03:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-08-29 03:03:00,757 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:03:00,757 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 13, 11, 11, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:03:00,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-29 03:03:00,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:03:00,969 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:03:00,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:03:00,970 INFO L82 PathProgramCache]: Analyzing trace with hash 78805813, now seen corresponding path program 1 times [2021-08-29 03:03:00,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:03:00,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464859200] [2021-08-29 03:03:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:03:00,971 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:03:00,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:03:00,971 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:03:00,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-29 03:03:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:03:01,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:03:01,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:03:01,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-08-29 03:03:01,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:03:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-08-29 03:03:02,015 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:03:02,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464859200] [2021-08-29 03:03:02,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464859200] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:03:02,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:03:02,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:03:02,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57817793] [2021-08-29 03:03:02,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:03:02,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:03:02,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:03:02,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:03:02,018 INFO L87 Difference]: Start difference. First operand 9232 states and 11823 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:03:02,421 INFO L93 Difference]: Finished difference Result 19629 states and 24779 transitions. [2021-08-29 03:03:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:03:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2021-08-29 03:03:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:03:02,439 INFO L225 Difference]: With dead ends: 19629 [2021-08-29 03:03:02,439 INFO L226 Difference]: Without dead ends: 10454 [2021-08-29 03:03:02,447 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:03:02,448 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 100 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 216.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.40ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 265.51ms IncrementalHoareTripleChecker+Time [2021-08-29 03:03:02,449 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 0 Invalid, 396 Unknown, 0 Unchecked, 0.40ms Time], IncrementalHoareTripleChecker [4 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 265.51ms Time] [2021-08-29 03:03:02,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-08-29 03:03:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 10024. [2021-08-29 03:03:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10024 states, 10023 states have (on average 1.2466327446872194) internal successors, (12495), 10023 states have internal predecessors, (12495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10024 states to 10024 states and 12495 transitions. [2021-08-29 03:03:02,684 INFO L78 Accepts]: Start accepts. Automaton has 10024 states and 12495 transitions. Word has length 359 [2021-08-29 03:03:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:03:02,685 INFO L470 AbstractCegarLoop]: Abstraction has 10024 states and 12495 transitions. [2021-08-29 03:03:02,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10024 states and 12495 transitions. [2021-08-29 03:03:02,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-08-29 03:03:02,708 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:03:02,708 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 11, 11, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:03:02,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-08-29 03:03:02,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:03:02,917 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:03:02,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:03:02,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1396739116, now seen corresponding path program 1 times [2021-08-29 03:03:02,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:03:02,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410926259] [2021-08-29 03:03:02,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:03:02,918 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:03:02,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:03:02,919 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:03:02,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-29 03:03:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:03:03,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:03:03,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:03:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-08-29 03:03:03,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:03:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-08-29 03:03:04,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:03:04,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410926259] [2021-08-29 03:03:04,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410926259] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:03:04,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:03:04,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-29 03:03:04,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110974959] [2021-08-29 03:03:04,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:03:04,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:03:04,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:03:04,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:03:04,328 INFO L87 Difference]: Start difference. First operand 10024 states and 12495 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:04,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:03:04,716 INFO L93 Difference]: Finished difference Result 15258 states and 19066 transitions. [2021-08-29 03:03:04,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:03:04,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 434 [2021-08-29 03:03:04,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:03:04,725 INFO L225 Difference]: With dead ends: 15258 [2021-08-29 03:03:04,725 INFO L226 Difference]: Without dead ends: 6496 [2021-08-29 03:03:04,732 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:03:04,733 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.36ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 243.71ms IncrementalHoareTripleChecker+Time [2021-08-29 03:03:04,734 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 419 Unknown, 0 Unchecked, 0.36ms Time], IncrementalHoareTripleChecker [2 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 243.71ms Time] [2021-08-29 03:03:04,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2021-08-29 03:03:04,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 6494. [2021-08-29 03:03:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6494 states, 6493 states have (on average 1.2590482057600494) internal successors, (8175), 6493 states have internal predecessors, (8175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 8175 transitions. [2021-08-29 03:03:04,909 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 8175 transitions. Word has length 434 [2021-08-29 03:03:04,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:03:04,910 INFO L470 AbstractCegarLoop]: Abstraction has 6494 states and 8175 transitions. [2021-08-29 03:03:04,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 8175 transitions. [2021-08-29 03:03:04,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-08-29 03:03:04,922 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:03:04,922 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 14, 14, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:03:04,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-29 03:03:05,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:03:05,133 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:03:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:03:05,133 INFO L82 PathProgramCache]: Analyzing trace with hash -839302048, now seen corresponding path program 1 times [2021-08-29 03:03:05,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:03:05,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650834414] [2021-08-29 03:03:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:03:05,134 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:03:05,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:03:05,135 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:03:05,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-29 03:03:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:03:05,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:03:05,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:03:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-08-29 03:03:05,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:03:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-08-29 03:03:06,632 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:03:06,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650834414] [2021-08-29 03:03:06,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650834414] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:03:06,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:03:06,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 03:03:06,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791384281] [2021-08-29 03:03:06,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:03:06,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:03:06,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:03:06,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:03:06,634 INFO L87 Difference]: Start difference. First operand 6494 states and 8175 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:03:06,949 INFO L93 Difference]: Finished difference Result 13252 states and 16870 transitions. [2021-08-29 03:03:06,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:03:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 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 544 [2021-08-29 03:03:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:03:06,958 INFO L225 Difference]: With dead ends: 13252 [2021-08-29 03:03:06,958 INFO L226 Difference]: Without dead ends: 6185 [2021-08-29 03:03:06,965 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1084 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.15ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:03:06,965 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 152 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 201.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 247.38ms IncrementalHoareTripleChecker+Time [2021-08-29 03:03:06,966 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 0 Invalid, 466 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [51 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 247.38ms Time] [2021-08-29 03:03:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6185 states. [2021-08-29 03:03:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6185 to 6134. [2021-08-29 03:03:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6133 states have (on average 1.2449046143812164) internal successors, (7635), 6133 states have internal predecessors, (7635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 7635 transitions. [2021-08-29 03:03:07,086 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 7635 transitions. Word has length 544 [2021-08-29 03:03:07,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:03:07,086 INFO L470 AbstractCegarLoop]: Abstraction has 6134 states and 7635 transitions. [2021-08-29 03:03:07,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 7635 transitions. [2021-08-29 03:03:07,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-08-29 03:03:07,096 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:03:07,097 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:03:07,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-08-29 03:03:07,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:03:07,307 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:03:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:03:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1723660819, now seen corresponding path program 1 times [2021-08-29 03:03:07,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:03:07,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188981169] [2021-08-29 03:03:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:03:07,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:03:07,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:03:07,309 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:03:07,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-08-29 03:03:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:03:07,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:03:07,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:03:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-08-29 03:03:08,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:03:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-08-29 03:03:09,005 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:03:09,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188981169] [2021-08-29 03:03:09,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188981169] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:03:09,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-29 03:03:09,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-08-29 03:03:09,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033403310] [2021-08-29 03:03:09,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:03:09,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:03:09,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:03:09,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:03:09,007 INFO L87 Difference]: Start difference. First operand 6134 states and 7635 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:03:09,286 INFO L93 Difference]: Finished difference Result 6347 states and 7905 transitions. [2021-08-29 03:03:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:03:09,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 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 619 [2021-08-29 03:03:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:03:09,287 INFO L225 Difference]: With dead ends: 6347 [2021-08-29 03:03:09,287 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 03:03:09,290 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.25ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:03:09,290 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 206.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 254.83ms IncrementalHoareTripleChecker+Time [2021-08-29 03:03:09,290 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 565 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [42 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 254.83ms Time] [2021-08-29 03:03:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 03:03:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 03:03:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 03:03:09,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2021-08-29 03:03:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:03:09,291 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 03:03:09,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:03:09,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 03:03:09,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 03:03:09,294 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:03:09,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-08-29 03:03:09,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:03:09,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 03:03:09,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:09,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:10,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:03:12,841 INFO L854 garLoopResultBuilder]: At program point L135(lines 131 556) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-08-29 03:03:12,842 INFO L854 garLoopResultBuilder]: At program point L532(lines 95 598) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)))) (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (.cse4 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32))) (.cse1 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32)))) (.cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (.cse12 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32))) (.cse2 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse3 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse8 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse6 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse10 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse5 (not .cse7))) (or (and .cse0 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse2 .cse3 .cse7 .cse8 .cse9 .cse6) (and .cse10 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32)) .cse5) (and .cse2 .cse3 (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse7 .cse8 .cse6) (and .cse2 .cse3 .cse7 .cse8 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse6) (and (not .cse0) .cse2 .cse3 .cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) .cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) .cse6) (and .cse2 .cse7 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4416 32)) .cse8) (and .cse1 .cse10 .cse4 .cse5) (and .cse1 .cse2 .cse3 .cse7 .cse11 .cse8 .cse6) (and .cse2 .cse3 .cse7 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0) .cse8 .cse6) (and .cse2 .cse3 .cse7 .cse12 .cse8 .cse6) (and .cse10 .cse7 .cse11) (and .cse2 .cse3 .cse7 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32)) .cse8 .cse6) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse10 .cse5 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (and .cse10 .cse12 .cse5) (and (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (and .cse2 .cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32)) .cse7 .cse8 .cse6) (and .cse10 .cse9 .cse5)))) [2021-08-29 03:03:12,842 INFO L861 garLoopResultBuilder]: At program point L599(lines 94 600) the Hoare annotation is: true [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 543) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 554) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 565) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L303-1(lines 303 317) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L854 garLoopResultBuilder]: At program point L204(lines 101 566) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-08-29 03:03:12,842 INFO L854 garLoopResultBuilder]: At program point L171(lines 167 544) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L568(lines 568 596) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L569(lines 569 593) no Hoare annotation was computed. [2021-08-29 03:03:12,842 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 542) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 553) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 564) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L570(lines 570 579) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L603-2(lines 603 607) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L570-2(lines 569 591) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L854 garLoopResultBuilder]: At program point L141(lines 137 554) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 83) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L307-2(lines 305 317) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L572(lines 572 576) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 445) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2021-08-29 03:03:12,843 INFO L858 garLoopResultBuilder]: For program point L209(lines 209 213) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 541) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 552) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L209-2(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L110(lines 110 563) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L854 garLoopResultBuilder]: At program point L177(lines 173 542) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse2) .cse8))) [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 82) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 508 512) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 413) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 250) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 540) no Hoare annotation was computed. [2021-08-29 03:03:12,844 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 551) no Hoare annotation was computed. [2021-08-29 03:03:12,845 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 562) no Hoare annotation was computed. [2021-08-29 03:03:12,845 INFO L854 garLoopResultBuilder]: At program point L147(lines 143 552) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) [2021-08-29 03:03:12,845 INFO L858 garLoopResultBuilder]: For program point L479(lines 479 483) no Hoare annotation was computed. [2021-08-29 03:03:12,845 INFO L858 garLoopResultBuilder]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2021-08-29 03:03:12,845 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 539) no Hoare annotation was computed. [2021-08-29 03:03:12,845 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 550) no Hoare annotation was computed. [2021-08-29 03:03:12,845 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 561) no Hoare annotation was computed. [2021-08-29 03:03:12,846 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 385) no Hoare annotation was computed. [2021-08-29 03:03:12,846 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 352) no Hoare annotation was computed. [2021-08-29 03:03:12,846 INFO L854 garLoopResultBuilder]: At program point L183(lines 179 540) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse2) .cse8))) [2021-08-29 03:03:12,846 INFO L854 garLoopResultBuilder]: At program point L117(lines 113 562) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-08-29 03:03:12,846 INFO L854 garLoopResultBuilder]: At program point L349(lines 67 616) the Hoare annotation is: false [2021-08-29 03:03:12,846 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L861 garLoopResultBuilder]: At program point L614(lines 67 616) the Hoare annotation is: true [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point L581(lines 581 587) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point L284-2(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,847 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 538) no Hoare annotation was computed. [2021-08-29 03:03:12,848 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 549) no Hoare annotation was computed. [2021-08-29 03:03:12,848 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 560) no Hoare annotation was computed. [2021-08-29 03:03:12,848 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-08-29 03:03:12,848 INFO L861 garLoopResultBuilder]: At program point L615(lines 10 617) the Hoare annotation is: true [2021-08-29 03:03:12,848 INFO L858 garLoopResultBuilder]: For program point L450(lines 450 454) no Hoare annotation was computed. [2021-08-29 03:03:12,848 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2021-08-29 03:03:12,848 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 238) no Hoare annotation was computed. [2021-08-29 03:03:12,849 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 537) no Hoare annotation was computed. [2021-08-29 03:03:12,849 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 548) no Hoare annotation was computed. [2021-08-29 03:03:12,849 INFO L858 garLoopResultBuilder]: For program point L221-2(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,849 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 559) no Hoare annotation was computed. [2021-08-29 03:03:12,849 INFO L854 garLoopResultBuilder]: At program point L189(lines 185 538) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32)) .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse2) .cse8))) [2021-08-29 03:03:12,849 INFO L854 garLoopResultBuilder]: At program point L123(lines 119 560) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) .cse2 .cse3 .cse4 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse5 .cse6 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32)) .cse7 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse5 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse6 .cse7))) [2021-08-29 03:03:12,849 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 487 499) no Hoare annotation was computed. [2021-08-29 03:03:12,850 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-08-29 03:03:12,850 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 03:03:12,850 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 228) no Hoare annotation was computed. [2021-08-29 03:03:12,850 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 536) no Hoare annotation was computed. [2021-08-29 03:03:12,850 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 547) no Hoare annotation was computed. [2021-08-29 03:03:12,850 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 558) no Hoare annotation was computed. [2021-08-29 03:03:12,851 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 526) no Hoare annotation was computed. [2021-08-29 03:03:12,851 INFO L854 garLoopResultBuilder]: At program point L192(lines 191 536) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32)))) (or (and (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse0 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32)) .cse1 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not .cse0) .cse1))) [2021-08-29 03:03:12,851 INFO L854 garLoopResultBuilder]: At program point L159(lines 149 550) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) [2021-08-29 03:03:12,851 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 495) no Hoare annotation was computed. [2021-08-29 03:03:12,851 INFO L858 garLoopResultBuilder]: For program point L457(lines 457 468) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 457 468) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 267) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 535) no Hoare annotation was computed. [2021-08-29 03:03:12,853 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 546) no Hoare annotation was computed. [2021-08-29 03:03:12,854 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 557) no Hoare annotation was computed. [2021-08-29 03:03:12,854 INFO L858 garLoopResultBuilder]: For program point L95-1(lines 67 616) no Hoare annotation was computed. [2021-08-29 03:03:12,854 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 465) no Hoare annotation was computed. [2021-08-29 03:03:12,854 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-08-29 03:03:12,854 INFO L858 garLoopResultBuilder]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2021-08-29 03:03:12,854 INFO L861 garLoopResultBuilder]: At program point L195(lines 194 535) the Hoare annotation is: true [2021-08-29 03:03:12,855 INFO L854 garLoopResultBuilder]: At program point L129(lines 125 558) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-08-29 03:03:12,855 INFO L858 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2021-08-29 03:03:12,855 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 266) no Hoare annotation was computed. [2021-08-29 03:03:12,855 INFO L858 garLoopResultBuilder]: For program point L229(lines 229 234) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point L262-2(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L861 garLoopResultBuilder]: At program point L626(lines 618 628) the Hoare annotation is: true [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 545) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 556) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 567) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2021-08-29 03:03:12,856 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2021-08-29 03:03:12,857 INFO L858 garLoopResultBuilder]: For program point L429-2(lines 199 531) no Hoare annotation was computed. [2021-08-29 03:03:12,857 INFO L861 garLoopResultBuilder]: At program point L198(lines 197 534) the Hoare annotation is: true [2021-08-29 03:03:12,857 INFO L854 garLoopResultBuilder]: At program point L165(lines 161 546) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) [2021-08-29 03:03:12,857 INFO L854 garLoopResultBuilder]: At program point L99(lines 98 567) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) [2021-08-29 03:03:12,857 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 368) no Hoare annotation was computed. [2021-08-29 03:03:12,857 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 403) no Hoare annotation was computed. [2021-08-29 03:03:12,857 INFO L858 garLoopResultBuilder]: For program point L398-2(lines 398 403) no Hoare annotation was computed. [2021-08-29 03:03:12,858 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 544) no Hoare annotation was computed. [2021-08-29 03:03:12,858 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 555) no Hoare annotation was computed. [2021-08-29 03:03:12,858 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 566) no Hoare annotation was computed. [2021-08-29 03:03:12,864 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:03:12,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:03:12 BoogieIcfgContainer [2021-08-29 03:03:12,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:03:12,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:03:12,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:03:12,886 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:03:12,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:02:35" (3/4) ... [2021-08-29 03:03:12,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 03:03:12,901 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-29 03:03:12,902 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 03:03:12,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:03:12,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:03:12,979 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:03:12,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:03:12,979 INFO L158 Benchmark]: Toolchain (without parser) took 38096.76ms. Allocated memory was 60.8MB in the beginning and 568.3MB in the end (delta: 507.5MB). Free memory was 39.6MB in the beginning and 445.3MB in the end (delta: -405.7MB). Peak memory consumption was 438.3MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,980 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:03:12,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.15ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 42.1MB in the end (delta: -2.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.35ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 39.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,980 INFO L158 Benchmark]: Boogie Preprocessor took 26.82ms. Allocated memory is still 60.8MB. Free memory was 39.6MB in the beginning and 37.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,981 INFO L158 Benchmark]: RCFGBuilder took 379.29ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 37.5MB in the beginning and 58.7MB in the end (delta: -21.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,981 INFO L158 Benchmark]: TraceAbstraction took 37221.16ms. Allocated memory was 83.9MB in the beginning and 568.3MB in the end (delta: 484.4MB). Free memory was 58.3MB in the beginning and 117.0MB in the end (delta: -58.7MB). Peak memory consumption was 436.5MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,981 INFO L158 Benchmark]: Witness Printer took 92.89ms. Allocated memory is still 568.3MB. Free memory was 117.0MB in the beginning and 445.3MB in the end (delta: -328.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 03:03:12,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.15ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 42.1MB in the end (delta: -2.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.35ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 39.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.82ms. Allocated memory is still 60.8MB. Free memory was 39.6MB in the beginning and 37.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.29ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 37.5MB in the beginning and 58.7MB in the end (delta: -21.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 37221.16ms. Allocated memory was 83.9MB in the beginning and 568.3MB in the end (delta: 484.4MB). Free memory was 58.3MB in the beginning and 117.0MB in the end (delta: -58.7MB). Peak memory consumption was 436.5MB. Max. memory is 16.1GB. * Witness Printer took 92.89ms. Allocated memory is still 568.3MB. Free memory was 117.0MB in the beginning and 445.3MB in the end (delta: -328.3MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 610]: 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, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37152.64ms, OverallIterations: 24, TraceHistogramMax: 22, EmptinessCheckTime: 146.25ms, AutomataDifference: 9525.81ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 3336.14ms, InitialAbstractionConstructionTime: 10.97ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3895 SdHoareTripleChecker+Valid, 7865.08ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3895 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 6195.47ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3909 mSDsCounter, 660 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12008 IncrementalHoareTripleChecker+Invalid, 12668 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 660 mSolverCounterUnsat, 0 mSDtfsCounter, 12008 mSolverCounterSat, 32.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10590 GetRequests, 10534 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 200.12ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10024occurred in iteration=21, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 1685.96ms AutomataMinimizationTime, 24 MinimizatonAttempts, 7174 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 272 NumberOfFragments, 1234 HoareAnnotationTreeSize, 23 FomulaSimplifications, 18092 FormulaSimplificationTreeSizeReduction, 1038.45ms HoareSimplificationTime, 23 FomulaSimplificationsInter, 14631 FormulaSimplificationTreeSizeReductionInter, 2284.26ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 393.66ms SsaConstructionTime, 1026.48ms SatisfiabilityAnalysisTime, 15259.48ms InterpolantComputationTime, 5310 NumberOfCodeBlocks, 5310 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 10572 ConstructedInterpolants, 0 QuantifiedInterpolants, 14469 SizeOfPredicates, 4 NumberOfNonLiveVariables, 7315 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 48 InterpolantComputations, 42 PerfectInterpolantSequences, 43356/43460 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: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (((((((0bv32 == blastFlag && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: ((((((((((((((((((s__state == 4368bv32 && 0bv32 == blastFlag) || (((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && s__state == 3bv32) && !(s__hit == 0bv32)) && 65535bv32 == ag_X)) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4512bv32) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__state == 4560bv32) && !(s__hit == 0bv32))) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 4464bv32 == s__state) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && s__hit == 0bv32) && s__state == 4416bv32) && !(5bv32 == blastFlag))) || (((!(s__s3__tmp__next_state___0 == 4368bv32) && 2bv32 == blastFlag) && s__state == 3bv32) && !(s__hit == 0bv32))) || ((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && s__state == 4400bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__hit == 0bv32) && 4432bv32 == s__state) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__hit == 0bv32) && s__state == 4528bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4400bv32)) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__hit == 0bv32) && s__state == 4448bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32)) || ((2bv32 == blastFlag && s__state == 4528bv32) && !(s__hit == 0bv32))) || (1bv32 == blastFlag && s__state == 4384bv32)) || (((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__state == 4496bv32) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__state == 4512bv32) && !(s__hit == 0bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 0bv32 == blastFlag && s__state == 12292bv32 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (((((((((((((!(s__state == 4368bv32) && !(s__s3__tmp__next_state___0 == 4368bv32)) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X RESULT: Ultimate proved your program to be correct! [2021-08-29 03:03:13,023 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...