./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/openssl-simplified/s3_srvr_1.cil-2.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 01b0b8134efbdf074cddaa1833662276f2c77ab674782f72d5e58899909f6aa6 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:57:03,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:57:03,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:57:03,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:57:03,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:57:03,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:57:03,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:57:03,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:57:03,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:57:03,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:57:03,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:57:03,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:57:03,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:57:03,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:57:03,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:57:03,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:57:03,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:57:03,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:57:03,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:57:03,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:57:03,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:57:03,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:57:03,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:57:03,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:57:03,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:57:03,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:57:03,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:57:03,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:57:03,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:57:03,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:57:03,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:57:03,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:57:03,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:57:03,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:57:03,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:57:03,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:57:03,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:57:03,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:57:03,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:57:03,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:57:03,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:57:03,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:57:03,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:57:03,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:57:03,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:57:03,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:57:03,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:57:03,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:57:03,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:57:03,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:57:03,774 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:57:03,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:57:03,775 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:57:03,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:57:03,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:57:03,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:57:03,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:57:03,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:57:03,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:57:03,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:57:03,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:57:03,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:57:03,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:57:03,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:57:03,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:57:03,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:57:03,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:57:03,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:57:03,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:57:03,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:57:03,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:57:03,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:57:03,780 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:57:03,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:57:03,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:57:03,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:57:03,781 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b0b8134efbdf074cddaa1833662276f2c77ab674782f72d5e58899909f6aa6 [2021-12-15 08:57:03,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:57:04,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:57:04,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:57:04,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:57:04,020 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:57:04,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2021-12-15 08:57:04,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/787dd58ed/c18ffbc9bff846eb98745ac8f0ed5f01/FLAG1aee1c399 [2021-12-15 08:57:04,570 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:57:04,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c [2021-12-15 08:57:04,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/787dd58ed/c18ffbc9bff846eb98745ac8f0ed5f01/FLAG1aee1c399 [2021-12-15 08:57:05,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/787dd58ed/c18ffbc9bff846eb98745ac8f0ed5f01 [2021-12-15 08:57:05,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:57:05,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:57:05,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:57:05,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:57:05,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:57:05,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6d9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05, skipping insertion in model container [2021-12-15 08:57:05,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:57:05,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:57:05,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c[43387,43400] [2021-12-15 08:57:05,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:57:05,360 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:57:05,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-2.c[43387,43400] [2021-12-15 08:57:05,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:57:05,433 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:57:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05 WrapperNode [2021-12-15 08:57:05,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:57:05,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:57:05,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:57:05,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:57:05,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,495 INFO L137 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 549 [2021-12-15 08:57:05,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:57:05,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:57:05,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:57:05,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:57:05,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:57:05,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:57:05,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:57:05,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:57:05,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (1/1) ... [2021-12-15 08:57:05,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:57:05,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:05,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 08:57:05,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 08:57:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:57:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:57:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:57:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:57:05,743 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:57:05,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:57:05,758 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 08:57:06,294 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-12-15 08:57:06,294 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-12-15 08:57:06,294 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:57:06,303 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:57:06,303 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 08:57:06,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:06 BoogieIcfgContainer [2021-12-15 08:57:06,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:57:06,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:57:06,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:57:06,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:57:06,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:57:05" (1/3) ... [2021-12-15 08:57:06,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbbed9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:57:06, skipping insertion in model container [2021-12-15 08:57:06,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:05" (2/3) ... [2021-12-15 08:57:06,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbbed9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:57:06, skipping insertion in model container [2021-12-15 08:57:06,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:06" (3/3) ... [2021-12-15 08:57:06,312 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-2.c [2021-12-15 08:57:06,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:57:06,317 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:57:06,370 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:57:06,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 08:57:06,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:57:06,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:06,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-15 08:57:06,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:06,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:06,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:06,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash -947483280, now seen corresponding path program 1 times [2021-12-15 08:57:06,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:06,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444468346] [2021-12-15 08:57:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:06,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:57:06,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:06,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444468346] [2021-12-15 08:57:06,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444468346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:06,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:06,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:06,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467133009] [2021-12-15 08:57:06,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:06,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:06,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:06,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:06,688 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 0 states have call successors, (0), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:06,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:06,863 INFO L93 Difference]: Finished difference Result 307 states and 519 transitions. [2021-12-15 08:57:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:06,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-12-15 08:57:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:06,874 INFO L225 Difference]: With dead ends: 307 [2021-12-15 08:57:06,874 INFO L226 Difference]: Without dead ends: 151 [2021-12-15 08:57:06,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:06,881 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 31 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:06,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 370 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-12-15 08:57:06,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2021-12-15 08:57:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.510204081632653) internal successors, (222), 147 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2021-12-15 08:57:06,924 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 45 [2021-12-15 08:57:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:06,925 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2021-12-15 08:57:06,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:06,925 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2021-12-15 08:57:06,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-15 08:57:06,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:06,927 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:06,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:57:06,928 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:06,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash 783297524, now seen corresponding path program 1 times [2021-12-15 08:57:06,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:06,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887931324] [2021-12-15 08:57:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:06,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:57:07,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:07,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887931324] [2021-12-15 08:57:07,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887931324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:07,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:07,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:07,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750179032] [2021-12-15 08:57:07,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:07,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:07,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,045 INFO L87 Difference]: Start difference. First operand 148 states and 222 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) [2021-12-15 08:57:07,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:07,177 INFO L93 Difference]: Finished difference Result 313 states and 476 transitions. [2021-12-15 08:57:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:07,178 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 61 [2021-12-15 08:57:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:07,183 INFO L225 Difference]: With dead ends: 313 [2021-12-15 08:57:07,184 INFO L226 Difference]: Without dead ends: 173 [2021-12-15 08:57:07,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,191 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 14 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:07,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 298 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:07,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-12-15 08:57:07,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 169. [2021-12-15 08:57:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.4761904761904763) internal successors, (248), 168 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 248 transitions. [2021-12-15 08:57:07,214 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 248 transitions. Word has length 61 [2021-12-15 08:57:07,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:07,215 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 248 transitions. [2021-12-15 08:57:07,215 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) [2021-12-15 08:57:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 248 transitions. [2021-12-15 08:57:07,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-15 08:57:07,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:07,225 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 08:57:07,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 08:57:07,226 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1336479842, now seen corresponding path program 1 times [2021-12-15 08:57:07,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:07,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163738189] [2021-12-15 08:57:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:07,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:07,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:07,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163738189] [2021-12-15 08:57:07,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163738189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:07,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:07,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:07,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731630196] [2021-12-15 08:57:07,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:07,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:07,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:07,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,347 INFO L87 Difference]: Start difference. First operand 169 states and 248 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:07,485 INFO L93 Difference]: Finished difference Result 376 states and 567 transitions. [2021-12-15 08:57:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:07,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 82 [2021-12-15 08:57:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:07,488 INFO L225 Difference]: With dead ends: 376 [2021-12-15 08:57:07,488 INFO L226 Difference]: Without dead ends: 215 [2021-12-15 08:57:07,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,495 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 15 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:07,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 295 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-15 08:57:07,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2021-12-15 08:57:07,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.4047619047619047) internal successors, (295), 210 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2021-12-15 08:57:07,515 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 82 [2021-12-15 08:57:07,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:07,516 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2021-12-15 08:57:07,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2021-12-15 08:57:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-15 08:57:07,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:07,522 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 08:57:07,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 08:57:07,523 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:07,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:07,523 INFO L85 PathProgramCache]: Analyzing trace with hash 439086564, now seen corresponding path program 1 times [2021-12-15 08:57:07,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:07,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109278486] [2021-12-15 08:57:07,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:07,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:07,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:07,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109278486] [2021-12-15 08:57:07,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109278486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:07,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:07,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:07,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099919968] [2021-12-15 08:57:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:07,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:07,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:07,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,617 INFO L87 Difference]: Start difference. First operand 211 states and 295 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:07,736 INFO L93 Difference]: Finished difference Result 441 states and 625 transitions. [2021-12-15 08:57:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 82 [2021-12-15 08:57:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:07,739 INFO L225 Difference]: With dead ends: 441 [2021-12-15 08:57:07,739 INFO L226 Difference]: Without dead ends: 238 [2021-12-15 08:57:07,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,744 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 14 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:07,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 314 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-12-15 08:57:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2021-12-15 08:57:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.386266094420601) internal successors, (323), 233 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 323 transitions. [2021-12-15 08:57:07,753 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 323 transitions. Word has length 82 [2021-12-15 08:57:07,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:07,754 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 323 transitions. [2021-12-15 08:57:07,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,754 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 323 transitions. [2021-12-15 08:57:07,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-15 08:57:07,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:07,755 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:07,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 08:57:07,756 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:07,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:07,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1295559526, now seen corresponding path program 1 times [2021-12-15 08:57:07,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:07,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524062685] [2021-12-15 08:57:07,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:07,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:07,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:07,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524062685] [2021-12-15 08:57:07,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524062685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:07,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:07,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:07,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595624801] [2021-12-15 08:57:07,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:07,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:07,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:07,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:07,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,812 INFO L87 Difference]: Start difference. First operand 234 states and 323 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:07,936 INFO L93 Difference]: Finished difference Result 498 states and 701 transitions. [2021-12-15 08:57:07,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:07,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 [2021-12-15 08:57:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:07,939 INFO L225 Difference]: With dead ends: 498 [2021-12-15 08:57:07,940 INFO L226 Difference]: Without dead ends: 272 [2021-12-15 08:57:07,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:07,941 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 30 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:07,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 313 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-12-15 08:57:07,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 259. [2021-12-15 08:57:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.3682170542635659) internal successors, (353), 258 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 353 transitions. [2021-12-15 08:57:07,955 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 353 transitions. Word has length 103 [2021-12-15 08:57:07,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:07,956 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 353 transitions. [2021-12-15 08:57:07,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 353 transitions. [2021-12-15 08:57:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:07,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:07,962 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-15 08:57:07,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 08:57:07,963 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:07,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:07,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1817702491, now seen corresponding path program 1 times [2021-12-15 08:57:07,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:07,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840921014] [2021-12-15 08:57:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:07,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:08,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840921014] [2021-12-15 08:57:08,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840921014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121363033] [2021-12-15 08:57:08,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,032 INFO L87 Difference]: Start difference. First operand 259 states and 353 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,072 INFO L93 Difference]: Finished difference Result 757 states and 1032 transitions. [2021-12-15 08:57:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-15 08:57:08,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,074 INFO L225 Difference]: With dead ends: 757 [2021-12-15 08:57:08,075 INFO L226 Difference]: Without dead ends: 506 [2021-12-15 08:57:08,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,076 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 137 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 502 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:08,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-12-15 08:57:08,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-12-15 08:57:08,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.3564356435643565) internal successors, (685), 505 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 685 transitions. [2021-12-15 08:57:08,102 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 685 transitions. Word has length 122 [2021-12-15 08:57:08,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,102 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 685 transitions. [2021-12-15 08:57:08,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,103 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 685 transitions. [2021-12-15 08:57:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:08,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,104 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-15 08:57:08,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 08:57:08,105 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,105 INFO L85 PathProgramCache]: Analyzing trace with hash 231685351, now seen corresponding path program 1 times [2021-12-15 08:57:08,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159375850] [2021-12-15 08:57:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:08,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159375850] [2021-12-15 08:57:08,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159375850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298187807] [2021-12-15 08:57:08,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,145 INFO L87 Difference]: Start difference. First operand 506 states and 685 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,174 INFO L93 Difference]: Finished difference Result 1249 states and 1693 transitions. [2021-12-15 08:57:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-15 08:57:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,178 INFO L225 Difference]: With dead ends: 1249 [2021-12-15 08:57:08,178 INFO L226 Difference]: Without dead ends: 751 [2021-12-15 08:57:08,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,180 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 134 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 470 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:08,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-12-15 08:57:08,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2021-12-15 08:57:08,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 750 states have (on average 1.352) internal successors, (1014), 750 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1014 transitions. [2021-12-15 08:57:08,196 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1014 transitions. Word has length 122 [2021-12-15 08:57:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,196 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1014 transitions. [2021-12-15 08:57:08,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1014 transitions. [2021-12-15 08:57:08,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:08,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,199 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-15 08:57:08,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 08:57:08,199 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash 58780327, now seen corresponding path program 1 times [2021-12-15 08:57:08,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684382779] [2021-12-15 08:57:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-15 08:57:08,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684382779] [2021-12-15 08:57:08,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684382779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206816912] [2021-12-15 08:57:08,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,230 INFO L87 Difference]: Start difference. First operand 751 states and 1014 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,252 INFO L93 Difference]: Finished difference Result 1518 states and 2046 transitions. [2021-12-15 08:57:08,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-12-15 08:57:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,255 INFO L225 Difference]: With dead ends: 1518 [2021-12-15 08:57:08,256 INFO L226 Difference]: Without dead ends: 775 [2021-12-15 08:57:08,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,257 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 10 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 394 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2021-12-15 08:57:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2021-12-15 08:57:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 1.347545219638243) internal successors, (1043), 774 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1043 transitions. [2021-12-15 08:57:08,281 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1043 transitions. Word has length 122 [2021-12-15 08:57:08,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,281 INFO L470 AbstractCegarLoop]: Abstraction has 775 states and 1043 transitions. [2021-12-15 08:57:08,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,282 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1043 transitions. [2021-12-15 08:57:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 08:57:08,284 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,284 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-15 08:57:08,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 08:57:08,284 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1448074341, now seen corresponding path program 1 times [2021-12-15 08:57:08,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487656599] [2021-12-15 08:57:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-15 08:57:08,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487656599] [2021-12-15 08:57:08,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487656599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305517213] [2021-12-15 08:57:08,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,315 INFO L87 Difference]: Start difference. First operand 775 states and 1043 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) [2021-12-15 08:57:08,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,336 INFO L93 Difference]: Finished difference Result 1555 states and 2088 transitions. [2021-12-15 08:57:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,337 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 122 [2021-12-15 08:57:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,340 INFO L225 Difference]: With dead ends: 1555 [2021-12-15 08:57:08,340 INFO L226 Difference]: Without dead ends: 788 [2021-12-15 08:57:08,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,342 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 6 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 374 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:08,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-12-15 08:57:08,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2021-12-15 08:57:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 787 states have (on average 1.3418043202033036) internal successors, (1056), 787 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1056 transitions. [2021-12-15 08:57:08,357 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1056 transitions. Word has length 122 [2021-12-15 08:57:08,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,358 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1056 transitions. [2021-12-15 08:57:08,358 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) [2021-12-15 08:57:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1056 transitions. [2021-12-15 08:57:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-15 08:57:08,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,361 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:08,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 08:57:08,361 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash -535798281, now seen corresponding path program 1 times [2021-12-15 08:57:08,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298826526] [2021-12-15 08:57:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:08,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298826526] [2021-12-15 08:57:08,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298826526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113402634] [2021-12-15 08:57:08,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,406 INFO L87 Difference]: Start difference. First operand 788 states and 1056 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,552 INFO L93 Difference]: Finished difference Result 1671 states and 2288 transitions. [2021-12-15 08:57:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-15 08:57:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,556 INFO L225 Difference]: With dead ends: 1671 [2021-12-15 08:57:08,556 INFO L226 Difference]: Without dead ends: 904 [2021-12-15 08:57:08,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,558 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 296 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:08,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2021-12-15 08:57:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 870. [2021-12-15 08:57:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 869 states have (on average 1.327963176064442) internal successors, (1154), 869 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1154 transitions. [2021-12-15 08:57:08,580 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1154 transitions. Word has length 160 [2021-12-15 08:57:08,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,581 INFO L470 AbstractCegarLoop]: Abstraction has 870 states and 1154 transitions. [2021-12-15 08:57:08,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,581 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1154 transitions. [2021-12-15 08:57:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-15 08:57:08,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,584 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:08,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 08:57:08,584 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 38943984, now seen corresponding path program 1 times [2021-12-15 08:57:08,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668403676] [2021-12-15 08:57:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-15 08:57:08,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668403676] [2021-12-15 08:57:08,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668403676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469615608] [2021-12-15 08:57:08,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,621 INFO L87 Difference]: Start difference. First operand 870 states and 1154 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,751 INFO L93 Difference]: Finished difference Result 1892 states and 2580 transitions. [2021-12-15 08:57:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-12-15 08:57:08,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,756 INFO L225 Difference]: With dead ends: 1892 [2021-12-15 08:57:08,756 INFO L226 Difference]: Without dead ends: 1040 [2021-12-15 08:57:08,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,757 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 163 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 161 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2021-12-15 08:57:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1023. [2021-12-15 08:57:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 1022 states have (on average 1.3786692759295498) internal successors, (1409), 1022 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1409 transitions. [2021-12-15 08:57:08,776 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1409 transitions. Word has length 174 [2021-12-15 08:57:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,776 INFO L470 AbstractCegarLoop]: Abstraction has 1023 states and 1409 transitions. [2021-12-15 08:57:08,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1409 transitions. [2021-12-15 08:57:08,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-15 08:57:08,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,780 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-15 08:57:08,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 08:57:08,780 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2091240991, now seen corresponding path program 1 times [2021-12-15 08:57:08,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304994012] [2021-12-15 08:57:08,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-15 08:57:08,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:08,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304994012] [2021-12-15 08:57:08,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304994012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:08,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:08,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:08,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085261097] [2021-12-15 08:57:08,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:08,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:08,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:08,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:08,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,833 INFO L87 Difference]: Start difference. First operand 1023 states and 1409 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:08,959 INFO L93 Difference]: Finished difference Result 2118 states and 2958 transitions. [2021-12-15 08:57:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2021-12-15 08:57:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:08,964 INFO L225 Difference]: With dead ends: 2118 [2021-12-15 08:57:08,964 INFO L226 Difference]: Without dead ends: 1116 [2021-12-15 08:57:08,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:08,968 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 14 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:08,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 307 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:08,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-12-15 08:57:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-12-15 08:57:08,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.3605381165919284) internal successors, (1517), 1115 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1517 transitions. [2021-12-15 08:57:08,989 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1517 transitions. Word has length 203 [2021-12-15 08:57:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:08,990 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1517 transitions. [2021-12-15 08:57:08,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1517 transitions. [2021-12-15 08:57:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-15 08:57:08,993 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:08,994 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-15 08:57:08,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 08:57:08,994 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:08,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:08,995 INFO L85 PathProgramCache]: Analyzing trace with hash -265869871, now seen corresponding path program 1 times [2021-12-15 08:57:08,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:08,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171905170] [2021-12-15 08:57:08,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:08,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-12-15 08:57:09,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:09,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171905170] [2021-12-15 08:57:09,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171905170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:09,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:09,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:09,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41553499] [2021-12-15 08:57:09,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:09,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:09,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:09,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:09,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,052 INFO L87 Difference]: Start difference. First operand 1116 states and 1517 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:09,178 INFO L93 Difference]: Finished difference Result 2337 states and 3237 transitions. [2021-12-15 08:57:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:09,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2021-12-15 08:57:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:09,183 INFO L225 Difference]: With dead ends: 2337 [2021-12-15 08:57:09,183 INFO L226 Difference]: Without dead ends: 1111 [2021-12-15 08:57:09,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,186 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 9 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:09,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 314 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2021-12-15 08:57:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1111. [2021-12-15 08:57:09,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1110 states have (on average 1.3549549549549549) internal successors, (1504), 1110 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1504 transitions. [2021-12-15 08:57:09,225 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1504 transitions. Word has length 232 [2021-12-15 08:57:09,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:09,226 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 1504 transitions. [2021-12-15 08:57:09,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1504 transitions. [2021-12-15 08:57:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-15 08:57:09,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:09,231 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:09,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 08:57:09,232 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -904430186, now seen corresponding path program 1 times [2021-12-15 08:57:09,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:09,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799403508] [2021-12-15 08:57:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:09,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-15 08:57:09,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799403508] [2021-12-15 08:57:09,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799403508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:09,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:09,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:09,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417594321] [2021-12-15 08:57:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:09,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:09,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:09,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,312 INFO L87 Difference]: Start difference. First operand 1111 states and 1504 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:09,352 INFO L93 Difference]: Finished difference Result 3174 states and 4325 transitions. [2021-12-15 08:57:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:09,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2021-12-15 08:57:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:09,358 INFO L225 Difference]: With dead ends: 3174 [2021-12-15 08:57:09,358 INFO L226 Difference]: Without dead ends: 1411 [2021-12-15 08:57:09,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,361 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 121 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:09,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 527 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2021-12-15 08:57:09,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1409. [2021-12-15 08:57:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1408 states have (on average 1.3579545454545454) internal successors, (1912), 1408 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1912 transitions. [2021-12-15 08:57:09,393 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1912 transitions. Word has length 272 [2021-12-15 08:57:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:09,393 INFO L470 AbstractCegarLoop]: Abstraction has 1409 states and 1912 transitions. [2021-12-15 08:57:09,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1912 transitions. [2021-12-15 08:57:09,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-12-15 08:57:09,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:09,398 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:09,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 08:57:09,399 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:09,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:09,399 INFO L85 PathProgramCache]: Analyzing trace with hash 460481987, now seen corresponding path program 1 times [2021-12-15 08:57:09,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:09,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046851806] [2021-12-15 08:57:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:09,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-12-15 08:57:09,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:09,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046851806] [2021-12-15 08:57:09,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046851806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:09,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:09,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:09,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756404999] [2021-12-15 08:57:09,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:09,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:09,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:09,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,461 INFO L87 Difference]: Start difference. First operand 1409 states and 1912 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:09,566 INFO L93 Difference]: Finished difference Result 2937 states and 4035 transitions. [2021-12-15 08:57:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 319 [2021-12-15 08:57:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:09,572 INFO L225 Difference]: With dead ends: 2937 [2021-12-15 08:57:09,573 INFO L226 Difference]: Without dead ends: 1549 [2021-12-15 08:57:09,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,578 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 19 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:09,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 308 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-12-15 08:57:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1517. [2021-12-15 08:57:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 1.345646437994723) internal successors, (2040), 1516 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2040 transitions. [2021-12-15 08:57:09,607 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2040 transitions. Word has length 319 [2021-12-15 08:57:09,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:09,607 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 2040 transitions. [2021-12-15 08:57:09,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2040 transitions. [2021-12-15 08:57:09,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-12-15 08:57:09,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:09,612 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:09,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 08:57:09,613 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:09,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1029985045, now seen corresponding path program 1 times [2021-12-15 08:57:09,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:09,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496537297] [2021-12-15 08:57:09,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:09,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-12-15 08:57:09,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:09,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496537297] [2021-12-15 08:57:09,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496537297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:09,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:09,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:09,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913735811] [2021-12-15 08:57:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:09,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:09,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:09,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:09,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,683 INFO L87 Difference]: Start difference. First operand 1517 states and 2040 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:09,794 INFO L93 Difference]: Finished difference Result 3137 states and 4263 transitions. [2021-12-15 08:57:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:09,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2021-12-15 08:57:09,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:09,800 INFO L225 Difference]: With dead ends: 3137 [2021-12-15 08:57:09,800 INFO L226 Difference]: Without dead ends: 1641 [2021-12-15 08:57:09,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:09,802 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:09,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 308 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2021-12-15 08:57:09,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1633. [2021-12-15 08:57:09,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1632 states have (on average 1.3333333333333333) internal successors, (2176), 1632 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2176 transitions. [2021-12-15 08:57:09,853 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2176 transitions. Word has length 342 [2021-12-15 08:57:09,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:09,853 INFO L470 AbstractCegarLoop]: Abstraction has 1633 states and 2176 transitions. [2021-12-15 08:57:09,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2176 transitions. [2021-12-15 08:57:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-12-15 08:57:09,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:09,859 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-15 08:57:09,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 08:57:09,859 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:09,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1175093220, now seen corresponding path program 1 times [2021-12-15 08:57:09,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:09,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859208013] [2021-12-15 08:57:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:09,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 906 proven. 26 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-12-15 08:57:09,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:09,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859208013] [2021-12-15 08:57:09,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859208013] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:09,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649194151] [2021-12-15 08:57:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:09,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:09,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:09,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:09,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 08:57:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:10,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:10,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:10,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2021-12-15 08:57:10,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:10,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649194151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:10,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:10,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:10,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356240042] [2021-12-15 08:57:10,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:10,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:10,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:10,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:10,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:10,679 INFO L87 Difference]: Start difference. First operand 1633 states and 2176 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:10,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:10,721 INFO L93 Difference]: Finished difference Result 2457 states and 3272 transitions. [2021-12-15 08:57:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:10,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 376 [2021-12-15 08:57:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:10,730 INFO L225 Difference]: With dead ends: 2457 [2021-12-15 08:57:10,730 INFO L226 Difference]: Without dead ends: 2455 [2021-12-15 08:57:10,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:10,732 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 139 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:10,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 360 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2021-12-15 08:57:10,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2455. [2021-12-15 08:57:10,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 1.3321108394458028) internal successors, (3269), 2454 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:10,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3269 transitions. [2021-12-15 08:57:10,780 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3269 transitions. Word has length 376 [2021-12-15 08:57:10,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:10,780 INFO L470 AbstractCegarLoop]: Abstraction has 2455 states and 3269 transitions. [2021-12-15 08:57:10,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:10,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3269 transitions. [2021-12-15 08:57:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-15 08:57:10,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:10,792 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:10,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:11,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-15 08:57:11,012 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:11,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash -785344079, now seen corresponding path program 1 times [2021-12-15 08:57:11,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:11,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124601028] [2021-12-15 08:57:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:11,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-15 08:57:11,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:11,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124601028] [2021-12-15 08:57:11,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124601028] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:11,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905928128] [2021-12-15 08:57:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:11,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:11,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:11,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:11,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 08:57:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:11,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:11,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 867 proven. 0 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2021-12-15 08:57:12,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:12,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905928128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:12,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:12,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:12,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419462410] [2021-12-15 08:57:12,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:12,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:12,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:12,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:12,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:12,048 INFO L87 Difference]: Start difference. First operand 2455 states and 3269 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:12,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:12,071 INFO L93 Difference]: Finished difference Result 2483 states and 3301 transitions. [2021-12-15 08:57:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:12,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2021-12-15 08:57:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:12,077 INFO L225 Difference]: With dead ends: 2483 [2021-12-15 08:57:12,078 INFO L226 Difference]: Without dead ends: 1687 [2021-12-15 08:57:12,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:12,080 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 101 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:12,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 269 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2021-12-15 08:57:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1661. [2021-12-15 08:57:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1660 states have (on average 1.3337349397590361) internal successors, (2214), 1660 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2214 transitions. [2021-12-15 08:57:12,119 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2214 transitions. Word has length 447 [2021-12-15 08:57:12,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:12,120 INFO L470 AbstractCegarLoop]: Abstraction has 1661 states and 2214 transitions. [2021-12-15 08:57:12,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:12,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2214 transitions. [2021-12-15 08:57:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-15 08:57:12,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:12,125 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:12,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:12,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-15 08:57:12,348 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:12,348 INFO L85 PathProgramCache]: Analyzing trace with hash -708443281, now seen corresponding path program 1 times [2021-12-15 08:57:12,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:12,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988551334] [2021-12-15 08:57:12,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:12,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-15 08:57:12,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:12,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988551334] [2021-12-15 08:57:12,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988551334] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:12,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349361641] [2021-12-15 08:57:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:12,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:12,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:12,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:12,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 08:57:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:12,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:12,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-15 08:57:13,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 1196 proven. 26 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-12-15 08:57:13,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349361641] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:13,664 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:13,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 08:57:13,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843201602] [2021-12-15 08:57:13,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:13,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 08:57:13,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 08:57:13,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 08:57:13,673 INFO L87 Difference]: Start difference. First operand 1661 states and 2214 transitions. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:13,909 INFO L93 Difference]: Finished difference Result 3597 states and 4862 transitions. [2021-12-15 08:57:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 08:57:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 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 447 [2021-12-15 08:57:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:13,916 INFO L225 Difference]: With dead ends: 3597 [2021-12-15 08:57:13,916 INFO L226 Difference]: Without dead ends: 1861 [2021-12-15 08:57:13,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 894 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:13,919 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 459 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:13,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 365 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 08:57:13,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2021-12-15 08:57:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1559. [2021-12-15 08:57:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 1.3042362002567394) internal successors, (2032), 1558 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2032 transitions. [2021-12-15 08:57:13,954 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2032 transitions. Word has length 447 [2021-12-15 08:57:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:13,954 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2032 transitions. [2021-12-15 08:57:13,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2032 transitions. [2021-12-15 08:57:13,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2021-12-15 08:57:13,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:13,961 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 12, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:13,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:14,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:14,176 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:14,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:14,176 INFO L85 PathProgramCache]: Analyzing trace with hash 264105968, now seen corresponding path program 1 times [2021-12-15 08:57:14,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:14,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424548401] [2021-12-15 08:57:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:14,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4562 backedges. 2170 proven. 0 refuted. 0 times theorem prover too weak. 2392 trivial. 0 not checked. [2021-12-15 08:57:14,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:14,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424548401] [2021-12-15 08:57:14,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424548401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:14,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:14,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:14,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351408486] [2021-12-15 08:57:14,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:14,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:14,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:14,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:14,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:14,259 INFO L87 Difference]: Start difference. First operand 1559 states and 2032 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:14,390 INFO L93 Difference]: Finished difference Result 3241 states and 4287 transitions. [2021-12-15 08:57:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 656 [2021-12-15 08:57:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:14,397 INFO L225 Difference]: With dead ends: 3241 [2021-12-15 08:57:14,398 INFO L226 Difference]: Without dead ends: 1703 [2021-12-15 08:57:14,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:14,401 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:14,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 296 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:14,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-12-15 08:57:14,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1695. [2021-12-15 08:57:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1694 states have (on average 1.2916174734356554) internal successors, (2188), 1694 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2188 transitions. [2021-12-15 08:57:14,444 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2188 transitions. Word has length 656 [2021-12-15 08:57:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:14,444 INFO L470 AbstractCegarLoop]: Abstraction has 1695 states and 2188 transitions. [2021-12-15 08:57:14,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2188 transitions. [2021-12-15 08:57:14,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2021-12-15 08:57:14,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:14,452 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 18, 18, 15, 12, 12, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:14,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 08:57:14,453 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:14,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:14,453 INFO L85 PathProgramCache]: Analyzing trace with hash -951624686, now seen corresponding path program 1 times [2021-12-15 08:57:14,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:14,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715366874] [2021-12-15 08:57:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:14,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6176 backedges. 2953 proven. 0 refuted. 0 times theorem prover too weak. 3223 trivial. 0 not checked. [2021-12-15 08:57:14,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:14,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715366874] [2021-12-15 08:57:14,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715366874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:14,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:14,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:14,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160750748] [2021-12-15 08:57:14,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:14,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:14,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:14,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:14,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:14,557 INFO L87 Difference]: Start difference. First operand 1695 states and 2188 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:14,691 INFO L93 Difference]: Finished difference Result 3521 states and 4615 transitions. [2021-12-15 08:57:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 749 [2021-12-15 08:57:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:14,698 INFO L225 Difference]: With dead ends: 3521 [2021-12-15 08:57:14,698 INFO L226 Difference]: Without dead ends: 1847 [2021-12-15 08:57:14,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:14,701 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:14,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 296 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2021-12-15 08:57:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1839. [2021-12-15 08:57:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1838 states have (on average 1.279651795429815) internal successors, (2352), 1838 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:14,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2352 transitions. [2021-12-15 08:57:14,765 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2352 transitions. Word has length 749 [2021-12-15 08:57:14,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:14,766 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2352 transitions. [2021-12-15 08:57:14,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:14,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2352 transitions. [2021-12-15 08:57:14,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2021-12-15 08:57:14,774 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:14,774 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 18, 15, 15, 12, 12, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:14,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 08:57:14,775 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:14,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1071625077, now seen corresponding path program 1 times [2021-12-15 08:57:14,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:14,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739105199] [2021-12-15 08:57:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:14,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 4746 proven. 26 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2021-12-15 08:57:14,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:14,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739105199] [2021-12-15 08:57:14,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739105199] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:14,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620242072] [2021-12-15 08:57:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:14,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:14,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:14,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 08:57:14,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 08:57:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:15,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:15,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 4746 proven. 26 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2021-12-15 08:57:16,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8111 backedges. 4746 proven. 26 refuted. 0 times theorem prover too weak. 3339 trivial. 0 not checked. [2021-12-15 08:57:17,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620242072] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:17,193 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:17,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-12-15 08:57:17,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029402163] [2021-12-15 08:57:17,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:17,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 08:57:17,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:17,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 08:57:17,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:17,196 INFO L87 Difference]: Start difference. First operand 1839 states and 2352 transitions. Second operand has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:17,542 INFO L93 Difference]: Finished difference Result 2691 states and 3462 transitions. [2021-12-15 08:57:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 08:57:17,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 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 848 [2021-12-15 08:57:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:17,546 INFO L225 Difference]: With dead ends: 2691 [2021-12-15 08:57:17,546 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 08:57:17,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1704 GetRequests, 1695 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-15 08:57:17,553 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 205 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:17,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 748 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 08:57:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 08:57:17,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 08:57:17,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 08:57:17,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 848 [2021-12-15 08:57:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:17,557 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 08:57:17,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.625) internal successors, (349), 8 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 08:57:17,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 08:57:17,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 08:57:17,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:17,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:17,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 08:57:19,425 INFO L858 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2021-12-15 08:57:19,425 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 611) no Hoare annotation was computed. [2021-12-15 08:57:19,425 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 405) no Hoare annotation was computed. [2021-12-15 08:57:19,426 INFO L854 garLoopResultBuilder]: At program point L201(lines 197 567) the Hoare annotation is: (or (and (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2))) [2021-12-15 08:57:19,426 INFO L854 garLoopResultBuilder]: At program point L168(lines 164 578) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,426 INFO L854 garLoopResultBuilder]: At program point L135(lines 134 588) the Hoare annotation is: (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) [2021-12-15 08:57:19,426 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-12-15 08:57:19,426 INFO L854 garLoopResultBuilder]: At program point L631(lines 629 632) the Hoare annotation is: false [2021-12-15 08:57:19,426 INFO L858 garLoopResultBuilder]: For program point L598(lines 598 603) no Hoare annotation was computed. [2021-12-15 08:57:19,426 INFO L858 garLoopResultBuilder]: For program point L598-2(lines 597 611) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 565) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 576) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 587) no Hoare annotation was computed. [2021-12-15 08:57:19,427 INFO L858 garLoopResultBuilder]: For program point L600(lines 600 602) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 244) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L237-2(lines 237 244) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 506) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L536-2(lines 536 540) no Hoare annotation was computed. [2021-12-15 08:57:19,428 INFO L858 garLoopResultBuilder]: For program point L437(lines 437 445) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L858 garLoopResultBuilder]: For program point L437-2(lines 437 445) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 564) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 575) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 586) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 378) no Hoare annotation was computed. [2021-12-15 08:57:19,429 INFO L854 garLoopResultBuilder]: At program point L207(lines 203 565) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse1) (and .cse0 .cse2 .cse1) (and .cse0 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,430 INFO L854 garLoopResultBuilder]: At program point L174(lines 170 576) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,430 INFO L858 garLoopResultBuilder]: For program point L605(lines 605 609) no Hoare annotation was computed. [2021-12-15 08:57:19,430 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 443) no Hoare annotation was computed. [2021-12-15 08:57:19,430 INFO L854 garLoopResultBuilder]: At program point L407(lines 398 416) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,430 INFO L858 garLoopResultBuilder]: For program point L209(lines 209 563) no Hoare annotation was computed. [2021-12-15 08:57:19,430 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 574) no Hoare annotation was computed. [2021-12-15 08:57:19,430 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 585) no Hoare annotation was computed. [2021-12-15 08:57:19,431 INFO L854 garLoopResultBuilder]: At program point L110-2(lines 110 614) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse2 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse3 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3))) (or (and .cse0 .cse1) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8560) .cse1) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse2 .cse1) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8544) .cse1) (and .cse0 .cse3) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448) (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) .cse3) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse2 .cse1) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8464)) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse2 .cse3))) [2021-12-15 08:57:19,431 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 377) no Hoare annotation was computed. [2021-12-15 08:57:19,431 INFO L858 garLoopResultBuilder]: For program point L342-1(lines 342 377) no Hoare annotation was computed. [2021-12-15 08:57:19,431 INFO L854 garLoopResultBuilder]: At program point L177(lines 176 574) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse1 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse3 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3))) (or (and .cse0 .cse1 .cse2) (and .cse1 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse2) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) .cse3) (and .cse0 .cse1 .cse3))) [2021-12-15 08:57:19,431 INFO L854 garLoopResultBuilder]: At program point L144(lines 137 587) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) .cse0) (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse1 .cse0) (and .cse2 .cse3 .cse1) (and .cse2 .cse3 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 510) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 219 558) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 374) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L410(lines 410 412) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 562) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 573) no Hoare annotation was computed. [2021-12-15 08:57:19,432 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 584) no Hoare annotation was computed. [2021-12-15 08:57:19,433 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 595) no Hoare annotation was computed. [2021-12-15 08:57:19,433 INFO L861 garLoopResultBuilder]: At program point L642(lines 633 644) the Hoare annotation is: true [2021-12-15 08:57:19,433 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 479) no Hoare annotation was computed. [2021-12-15 08:57:19,433 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 249) no Hoare annotation was computed. [2021-12-15 08:57:19,433 INFO L854 garLoopResultBuilder]: At program point L213(lines 209 563) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse0 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse1) (and .cse0 .cse2 .cse1) (and .cse2 .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)))) [2021-12-15 08:57:19,433 INFO L854 garLoopResultBuilder]: At program point L114(lines 113 595) the Hoare annotation is: (let ((.cse0 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,433 INFO L858 garLoopResultBuilder]: For program point L313(lines 313 320) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L313-2(lines 313 320) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 561) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 572) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 583) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 594) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 552) no Hoare annotation was computed. [2021-12-15 08:57:19,434 INFO L858 garLoopResultBuilder]: For program point L546-1(lines 546 552) no Hoare annotation was computed. [2021-12-15 08:57:19,435 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 372) no Hoare annotation was computed. [2021-12-15 08:57:19,435 INFO L861 garLoopResultBuilder]: At program point L216(lines 215 561) the Hoare annotation is: true [2021-12-15 08:57:19,435 INFO L854 garLoopResultBuilder]: At program point L183(lines 179 573) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse0) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,435 INFO L854 garLoopResultBuilder]: At program point L150(lines 146 584) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (.cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse4 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse0 .cse1) (and .cse2 .cse3 .cse0) (and .cse4 .cse1) (and .cse2 .cse3 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)) (and .cse2 .cse4 .cse3))) [2021-12-15 08:57:19,435 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 285) no Hoare annotation was computed. [2021-12-15 08:57:19,435 INFO L858 garLoopResultBuilder]: For program point L283-2(lines 219 558) no Hoare annotation was computed. [2021-12-15 08:57:19,435 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 08:57:19,436 INFO L858 garLoopResultBuilder]: For program point L317(lines 317 319) no Hoare annotation was computed. [2021-12-15 08:57:19,436 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 262) no Hoare annotation was computed. [2021-12-15 08:57:19,436 INFO L861 garLoopResultBuilder]: At program point L218(lines 217 561) the Hoare annotation is: true [2021-12-15 08:57:19,436 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 571) no Hoare annotation was computed. [2021-12-15 08:57:19,436 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 582) no Hoare annotation was computed. [2021-12-15 08:57:19,436 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 593) no Hoare annotation was computed. [2021-12-15 08:57:19,436 INFO L861 garLoopResultBuilder]: At program point L615(lines 109 616) the Hoare annotation is: true [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 551) no Hoare annotation was computed. [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 520) no Hoare annotation was computed. [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 453) no Hoare annotation was computed. [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L352-2(lines 352 356) no Hoare annotation was computed. [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L253(lines 253 256) no Hoare annotation was computed. [2021-12-15 08:57:19,437 INFO L858 garLoopResultBuilder]: For program point L386(lines 386 418) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 570) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 581) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 592) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 488) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L858 garLoopResultBuilder]: For program point L486-2(lines 219 558) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 393) no Hoare annotation was computed. [2021-12-15 08:57:19,438 INFO L854 garLoopResultBuilder]: At program point L222(lines 116 594) the Hoare annotation is: (let ((.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)) (and .cse1 .cse0))) [2021-12-15 08:57:19,439 INFO L854 garLoopResultBuilder]: At program point L189(lines 185 571) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse0) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,439 INFO L854 garLoopResultBuilder]: At program point L156(lines 152 582) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,439 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 463) no Hoare annotation was computed. [2021-12-15 08:57:19,439 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 08:57:19,439 INFO L858 garLoopResultBuilder]: For program point L620(lines 620 622) no Hoare annotation was computed. [2021-12-15 08:57:19,439 INFO L858 garLoopResultBuilder]: For program point L620-2(lines 620 622) no Hoare annotation was computed. [2021-12-15 08:57:19,439 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 569) no Hoare annotation was computed. [2021-12-15 08:57:19,440 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 580) no Hoare annotation was computed. [2021-12-15 08:57:19,440 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 591) no Hoare annotation was computed. [2021-12-15 08:57:19,440 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 08:57:19,440 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 08:57:19,440 INFO L861 garLoopResultBuilder]: At program point L623(lines 23 627) the Hoare annotation is: true [2021-12-15 08:57:19,440 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 460) no Hoare annotation was computed. [2021-12-15 08:57:19,440 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 568) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 579) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 590) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 531) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L492(lines 492 496) no Hoare annotation was computed. [2021-12-15 08:57:19,441 INFO L858 garLoopResultBuilder]: For program point L492-2(lines 492 496) no Hoare annotation was computed. [2021-12-15 08:57:19,442 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 368) no Hoare annotation was computed. [2021-12-15 08:57:19,442 INFO L854 garLoopResultBuilder]: At program point L195(lines 191 569) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse0) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,442 INFO L854 garLoopResultBuilder]: At program point L162(lines 158 580) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,442 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-12-15 08:57:19,442 INFO L858 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 08:57:19,442 INFO L854 garLoopResultBuilder]: At program point L559(lines 110 614) the Hoare annotation is: (let ((.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0))) (.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse3 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3))) (or (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8544) .cse0) (and .cse1 .cse2) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448) (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) .cse2) (and .cse1 .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse3 .cse0) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8560) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse3 .cse0) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse3 .cse2))) [2021-12-15 08:57:19,443 INFO L854 garLoopResultBuilder]: At program point L361(lines 336 379) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,443 INFO L858 garLoopResultBuilder]: For program point L428(lines 428 430) no Hoare annotation was computed. [2021-12-15 08:57:19,443 INFO L854 garLoopResultBuilder]: At program point L395(lines 386 418) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,443 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 298) no Hoare annotation was computed. [2021-12-15 08:57:19,443 INFO L858 garLoopResultBuilder]: For program point L296-2(lines 219 558) no Hoare annotation was computed. [2021-12-15 08:57:19,443 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 567) no Hoare annotation was computed. [2021-12-15 08:57:19,443 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 578) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 589) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 530) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point L528-2(lines 219 558) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 365) no Hoare annotation was computed. [2021-12-15 08:57:19,444 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 334) no Hoare annotation was computed. [2021-12-15 08:57:19,445 INFO L858 garLoopResultBuilder]: For program point L330-2(lines 219 558) no Hoare annotation was computed. [2021-12-15 08:57:19,445 INFO L854 garLoopResultBuilder]: At program point L132(lines 128 590) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 2)) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576) .cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (and .cse1 .cse2 .cse0) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 3)))) [2021-12-15 08:57:19,445 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-12-15 08:57:19,445 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 612) no Hoare annotation was computed. [2021-12-15 08:57:19,445 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 416) no Hoare annotation was computed. [2021-12-15 08:57:19,445 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 566) no Hoare annotation was computed. [2021-12-15 08:57:19,445 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 577) no Hoare annotation was computed. [2021-12-15 08:57:19,446 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 588) no Hoare annotation was computed. [2021-12-15 08:57:19,446 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-12-15 08:57:19,446 INFO L858 garLoopResultBuilder]: For program point L101-1(lines 84 626) no Hoare annotation was computed. [2021-12-15 08:57:19,449 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:19,450 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 08:57:19,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:57:19 BoogieIcfgContainer [2021-12-15 08:57:19,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 08:57:19,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 08:57:19,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 08:57:19,471 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 08:57:19,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:06" (3/4) ... [2021-12-15 08:57:19,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 08:57:19,493 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 08:57:19,494 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 08:57:19,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 08:57:19,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 08:57:19,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 08:57:19,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 08:57:19,588 INFO L158 Benchmark]: Toolchain (without parser) took 14514.85ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 62.5MB in the beginning and 74.6MB in the end (delta: -12.1MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,592 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory was 46.1MB in the beginning and 46.1MB in the end (delta: 23.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:57:19,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.65ms. Allocated memory is still 94.4MB. Free memory was 62.1MB in the beginning and 67.5MB in the end (delta: -5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.19ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 64.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,592 INFO L158 Benchmark]: Boogie Preprocessor took 59.04ms. Allocated memory is still 94.4MB. Free memory was 64.5MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,593 INFO L158 Benchmark]: RCFGBuilder took 748.94ms. Allocated memory is still 94.4MB. Free memory was 62.4MB in the beginning and 34.3MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,593 INFO L158 Benchmark]: TraceAbstraction took 13164.27ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 33.9MB in the beginning and 85.1MB in the end (delta: -51.2MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,593 INFO L158 Benchmark]: Witness Printer took 117.40ms. Allocated memory is still 197.1MB. Free memory was 85.1MB in the beginning and 74.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:57:19,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory was 46.1MB in the beginning and 46.1MB in the end (delta: 23.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.65ms. Allocated memory is still 94.4MB. Free memory was 62.1MB in the beginning and 67.5MB in the end (delta: -5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.19ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 64.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.04ms. Allocated memory is still 94.4MB. Free memory was 64.5MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 748.94ms. Allocated memory is still 94.4MB. Free memory was 62.4MB in the beginning and 34.3MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13164.27ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 33.9MB in the beginning and 85.1MB in the end (delta: -51.2MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. * Witness Printer took 117.40ms. Allocated memory is still 197.1MB. Free memory was 85.1MB in the beginning and 74.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 630]: 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, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 22, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1691 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1691 mSDsluCounter, 7885 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3103 mSDsCounter, 472 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2328 IncrementalHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 472 mSolverCounterUnsat, 4782 mSDtfsCounter, 2328 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3487 GetRequests, 3448 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2455occurred in iteration=17, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 465 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 203 NumberOfFragments, 823 HoareAnnotationTreeSize, 28 FomulaSimplifications, 1351 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 28 FomulaSimplificationsInter, 2002 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 8204 NumberOfCodeBlocks, 8204 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 9471 ConstructedInterpolants, 0 QuantifiedInterpolants, 12615 SizeOfPredicates, 2 NumberOfNonLiveVariables, 3337 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 52297/52505 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: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: s__state <= 8672 - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((s__state <= 8672 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((blastFlag == 0 && s__state < 8576) || ((s__s3__tmp__next_state___0 <= 8576 && blastFlag == 2) && s__state < 8576)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((((!(s__hit == 0) && blastFlag == 2) || (s__state == 8560 && blastFlag == 2)) || ((s__state == 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || s__state == 3) || (s__state == 8544 && blastFlag == 2)) || (!(s__hit == 0) && blastFlag == 3)) || ((s__state == 8448 && s__s3__tmp__next_state___0 == 3) && blastFlag == 3)) || (blastFlag == 2 && s__state == 8512)) || ((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || (blastFlag == 0 && s__state == 8464)) || (blastFlag == 2 && s__state == 8528)) || (s__state == 8496 && blastFlag == 1)) || (((s__state <= 8672 && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 3) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((s__state == 3 || (s__state == 8544 && blastFlag == 2)) || (!(s__hit == 0) && blastFlag == 3)) || ((s__state == 8448 && s__s3__tmp__next_state___0 == 3) && blastFlag == 3)) || (!(s__hit == 0) && blastFlag == 2)) || (blastFlag == 2 && s__state == 8512)) || ((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || (s__state == 8560 && blastFlag == 2)) || (blastFlag == 2 && s__state == 8528)) || ((s__state == 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || (s__state == 8496 && blastFlag == 1)) || (((s__state <= 8672 && 8672 <= s__state) && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 3) - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 386]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (((s__s3__tmp__next_state___0 <= 8576 && blastFlag == 2) && s__state < 8576) || (!(s__hit == 0) && blastFlag == 3)) || (!(s__hit == 0) && blastFlag == 2) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: ((8672 <= s__state && !(s__hit == 0)) && blastFlag == 2) || ((8672 <= s__state && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((((!(s__hit == 0) && s__state == 8448) && blastFlag == 2) || ((s__state == 8448 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2)) || ((s__state == 8448 && s__s3__tmp__next_state___0 == 3) && blastFlag == 3)) || ((!(s__hit == 0) && s__state == 8448) && blastFlag == 3) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (((8672 <= s__state && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 3) || ((8672 <= s__state && !(s__hit == 0)) && blastFlag == 3)) || ((!(s__hit == 0) && 8672 <= s__state) && blastFlag == 2) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((s__s3__tmp__next_state___0 <= 8576 && blastFlag == 2) && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((s__s3__tmp__next_state___0 <= 8576 && blastFlag == 2) && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || (blastFlag == 1 && s__state < 8576)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3)) || ((s__state <= 8672 && blastFlag == 1) && !(s__hit == 0)) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (s__state <= 8672 && !(s__hit == 0)) || ((s__state < 8656 && s__s3__tmp__next_state___0 <= 8576) && blastFlag == 2) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state < 8576) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 2)) || ((s__state <= 8672 && !(s__hit == 0)) && blastFlag == 3) RESULT: Ultimate proved your program to be correct! [2021-12-15 08:57:19,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE