./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.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_clnt_1.cil-1.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 9d22078cc0ed1f6555ed02c6ceb2e5694208de3c10c4e0f5a14ad82c4e25bb79 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:56:52,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:56:52,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:56:52,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:56:52,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:56:52,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:56:52,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:56:52,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:56:52,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:56:52,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:56:52,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:56:52,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:56:52,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:56:52,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:56:52,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:56:52,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:56:52,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:56:52,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:56:52,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:56:52,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:56:52,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:56:52,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:56:52,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:56:52,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:56:52,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:56:52,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:56:52,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:56:52,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:56:52,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:56:52,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:56:52,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:56:52,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:56:52,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:56:52,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:56:52,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:56:52,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:56:52,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:56:52,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:56:52,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:56:52,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:56:52,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:56:52,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:56:52,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:56:52,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:56:52,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:56:52,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:56:52,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:56:52,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:56:52,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:56:52,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:56:52,416 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:56:52,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:56:52,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:56:52,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:56:52,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:56:52,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:56:52,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:56:52,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:56:52,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:56:52,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:56:52,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:56:52,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:56:52,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:56:52,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:56:52,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:56:52,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:56:52,420 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:56:52,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:56:52,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:56:52,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:56:52,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d22078cc0ed1f6555ed02c6ceb2e5694208de3c10c4e0f5a14ad82c4e25bb79 [2021-12-15 08:56:52,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:56:52,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:56:52,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:56:52,673 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:56:52,674 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:56:52,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2021-12-15 08:56:52,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f739e0d96/a3a2727b91504d5b9337dcb365da8161/FLAG03633f37b [2021-12-15 08:56:53,188 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:56:53,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2021-12-15 08:56:53,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f739e0d96/a3a2727b91504d5b9337dcb365da8161/FLAG03633f37b [2021-12-15 08:56:53,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f739e0d96/a3a2727b91504d5b9337dcb365da8161 [2021-12-15 08:56:53,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:56:53,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:56:53,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:56:53,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:56:53,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:56:53,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f71cc49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53, skipping insertion in model container [2021-12-15 08:56:53,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:56:53,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:56:53,485 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_clnt_1.cil-1.c[35497,35510] [2021-12-15 08:56:53,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:56:53,503 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:56:53,556 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_clnt_1.cil-1.c[35497,35510] [2021-12-15 08:56:53,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:56:53,568 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:56:53,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53 WrapperNode [2021-12-15 08:56:53,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:56:53,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:56:53,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:56:53,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:56:53,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,617 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 506 [2021-12-15 08:56:53,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:56:53,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:56:53,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:56:53,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:56:53,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:56:53,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:56:53,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:56:53,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:56:53,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (1/1) ... [2021-12-15 08:56:53,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:56:53,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:56:53,701 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 08:56:53,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 08:56:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:56:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:56:53,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:56:53,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:56:53,826 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:56:53,827 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:56:53,838 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 08:56:54,245 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-15 08:56:54,247 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-15 08:56:54,247 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:56:54,252 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:56:54,252 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 08:56:54,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:56:54 BoogieIcfgContainer [2021-12-15 08:56:54,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:56:54,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:56:54,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:56:54,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:56:54,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:56:53" (1/3) ... [2021-12-15 08:56:54,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5846f02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:56:54, skipping insertion in model container [2021-12-15 08:56:54,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:56:53" (2/3) ... [2021-12-15 08:56:54,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5846f02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:56:54, skipping insertion in model container [2021-12-15 08:56:54,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:56:54" (3/3) ... [2021-12-15 08:56:54,261 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2021-12-15 08:56:54,266 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:56:54,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:56:54,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:56:54,324 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 08:56:54,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:56:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 08:56:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-15 08:56:54,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:54,354 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] [2021-12-15 08:56:54,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:54,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:54,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2021-12-15 08:56:54,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:54,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739101870] [2021-12-15 08:56:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:54,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:54,539 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 08:56:54,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:54,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739101870] [2021-12-15 08:56:54,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739101870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:54,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:54,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:54,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924958248] [2021-12-15 08:56:54,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:54,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:54,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:54,570 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:54,693 INFO L93 Difference]: Finished difference Result 282 states and 478 transitions. [2021-12-15 08:56:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:54,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-15 08:56:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:54,701 INFO L225 Difference]: With dead ends: 282 [2021-12-15 08:56:54,701 INFO L226 Difference]: Without dead ends: 139 [2021-12-15 08:56:54,704 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 08:56:54,706 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 168 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:54,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 171 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-12-15 08:56:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 134. [2021-12-15 08:56:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.5714285714285714) internal successors, (209), 133 states have internal predecessors, (209), 0 states have call successors, (0), 0 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 08:56:54,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 209 transitions. [2021-12-15 08:56:54,734 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 209 transitions. Word has length 24 [2021-12-15 08:56:54,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:54,735 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 209 transitions. [2021-12-15 08:56:54,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:54,735 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 209 transitions. [2021-12-15 08:56:54,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 08:56:54,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:54,745 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] [2021-12-15 08:56:54,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:56:54,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:54,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:54,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2051402327, now seen corresponding path program 1 times [2021-12-15 08:56:54,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:54,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181808396] [2021-12-15 08:56:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:54,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:54,798 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 08:56:54,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:54,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181808396] [2021-12-15 08:56:54,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181808396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:54,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:54,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:54,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227078357] [2021-12-15 08:56:54,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:54,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:54,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:54,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:54,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:54,800 INFO L87 Difference]: Start difference. First operand 134 states and 209 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:54,912 INFO L93 Difference]: Finished difference Result 290 states and 456 transitions. [2021-12-15 08:56:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:54,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-15 08:56:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:54,914 INFO L225 Difference]: With dead ends: 290 [2021-12-15 08:56:54,914 INFO L226 Difference]: Without dead ends: 163 [2021-12-15 08:56:54,915 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 08:56:54,916 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 125 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:54,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 119 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:54,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-15 08:56:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 158. [2021-12-15 08:56:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.605095541401274) internal successors, (252), 157 states have internal predecessors, (252), 0 states have call successors, (0), 0 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 08:56:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 252 transitions. [2021-12-15 08:56:54,929 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 252 transitions. Word has length 25 [2021-12-15 08:56:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:54,930 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 252 transitions. [2021-12-15 08:56:54,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 252 transitions. [2021-12-15 08:56:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-15 08:56:54,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:54,934 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:54,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 08:56:54,934 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:54,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:54,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1662653946, now seen corresponding path program 1 times [2021-12-15 08:56:54,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:54,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972351853] [2021-12-15 08:56:54,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:54,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:56:55,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972351853] [2021-12-15 08:56:55,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972351853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174371551] [2021-12-15 08:56:55,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,003 INFO L87 Difference]: Start difference. First operand 158 states and 252 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 08:56:55,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,090 INFO L93 Difference]: Finished difference Result 333 states and 535 transitions. [2021-12-15 08:56:55,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-12-15 08:56:55,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,092 INFO L225 Difference]: With dead ends: 333 [2021-12-15 08:56:55,092 INFO L226 Difference]: Without dead ends: 182 [2021-12-15 08:56:55,093 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 08:56:55,094 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 128 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 118 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-12-15 08:56:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2021-12-15 08:56:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.6179775280898876) internal successors, (288), 178 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 288 transitions. [2021-12-15 08:56:55,103 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 288 transitions. Word has length 44 [2021-12-15 08:56:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,104 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 288 transitions. [2021-12-15 08:56:55,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 08:56:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 288 transitions. [2021-12-15 08:56:55,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-15 08:56:55,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,106 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:55,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 08:56:55,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1651197713, now seen corresponding path program 1 times [2021-12-15 08:56:55,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345381851] [2021-12-15 08:56:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:56:55,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345381851] [2021-12-15 08:56:55,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345381851] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226729064] [2021-12-15 08:56:55,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,179 INFO L87 Difference]: Start difference. First operand 179 states and 288 transitions. 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 08:56:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,270 INFO L93 Difference]: Finished difference Result 354 states and 569 transitions. [2021-12-15 08:56:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,271 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 08:56:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,272 INFO L225 Difference]: With dead ends: 354 [2021-12-15 08:56:55,272 INFO L226 Difference]: Without dead ends: 182 [2021-12-15 08:56:55,273 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 08:56:55,274 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 127 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 118 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-12-15 08:56:55,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2021-12-15 08:56:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.6067415730337078) internal successors, (286), 178 states have internal predecessors, (286), 0 states have call successors, (0), 0 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 08:56:55,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 286 transitions. [2021-12-15 08:56:55,283 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 286 transitions. Word has length 45 [2021-12-15 08:56:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,283 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 286 transitions. [2021-12-15 08:56:55,283 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 08:56:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 286 transitions. [2021-12-15 08:56:55,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-15 08:56:55,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,285 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:55,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 08:56:55,285 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1424732368, now seen corresponding path program 1 times [2021-12-15 08:56:55,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856306860] [2021-12-15 08:56:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-15 08:56:55,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856306860] [2021-12-15 08:56:55,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856306860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110934672] [2021-12-15 08:56:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,322 INFO L87 Difference]: Start difference. First operand 179 states and 286 transitions. 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 08:56:55,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,398 INFO L93 Difference]: Finished difference Result 375 states and 602 transitions. [2021-12-15 08:56:55,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,399 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 60 [2021-12-15 08:56:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,400 INFO L225 Difference]: With dead ends: 375 [2021-12-15 08:56:55,400 INFO L226 Difference]: Without dead ends: 203 [2021-12-15 08:56:55,401 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 08:56:55,402 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 130 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 121 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-12-15 08:56:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2021-12-15 08:56:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.606060606060606) internal successors, (318), 198 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 08:56:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2021-12-15 08:56:55,410 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 60 [2021-12-15 08:56:55,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,410 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2021-12-15 08:56:55,410 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 08:56:55,411 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2021-12-15 08:56:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-15 08:56:55,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,412 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:55,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 08:56:55,413 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1832031845, now seen corresponding path program 1 times [2021-12-15 08:56:55,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47647191] [2021-12-15 08:56:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-15 08:56:55,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47647191] [2021-12-15 08:56:55,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47647191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675999564] [2021-12-15 08:56:55,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,444 INFO L87 Difference]: Start difference. First operand 199 states and 318 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 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 08:56:55,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,517 INFO L93 Difference]: Finished difference Result 395 states and 631 transitions. [2021-12-15 08:56:55,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 08:56:55,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,519 INFO L225 Difference]: With dead ends: 395 [2021-12-15 08:56:55,519 INFO L226 Difference]: Without dead ends: 203 [2021-12-15 08:56:55,519 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 08:56:55,520 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 129 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 120 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-12-15 08:56:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2021-12-15 08:56:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.5909090909090908) internal successors, (315), 198 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 08:56:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 315 transitions. [2021-12-15 08:56:55,553 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 315 transitions. Word has length 61 [2021-12-15 08:56:55,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,554 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 315 transitions. [2021-12-15 08:56:55,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 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 08:56:55,554 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 315 transitions. [2021-12-15 08:56:55,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-15 08:56:55,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,557 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:55,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 08:56:55,558 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,558 INFO L85 PathProgramCache]: Analyzing trace with hash -844405167, now seen corresponding path program 1 times [2021-12-15 08:56:55,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072772049] [2021-12-15 08:56:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:56:55,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072772049] [2021-12-15 08:56:55,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072772049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407624952] [2021-12-15 08:56:55,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,591 INFO L87 Difference]: Start difference. First operand 199 states and 315 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:55,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,691 INFO L93 Difference]: Finished difference Result 433 states and 691 transitions. [2021-12-15 08:56:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-12-15 08:56:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,692 INFO L225 Difference]: With dead ends: 433 [2021-12-15 08:56:55,692 INFO L226 Difference]: Without dead ends: 240 [2021-12-15 08:56:55,693 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 08:56:55,694 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 98 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 127 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-12-15 08:56:55,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-12-15 08:56:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.610878661087866) internal successors, (385), 239 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 08:56:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 385 transitions. [2021-12-15 08:56:55,700 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 385 transitions. Word has length 63 [2021-12-15 08:56:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,701 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 385 transitions. [2021-12-15 08:56:55,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 385 transitions. [2021-12-15 08:56:55,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-15 08:56:55,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,703 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 08:56:55,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 08:56:55,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1789963447, now seen corresponding path program 1 times [2021-12-15 08:56:55,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635275403] [2021-12-15 08:56:55,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-15 08:56:55,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635275403] [2021-12-15 08:56:55,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635275403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039397808] [2021-12-15 08:56:55,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,745 INFO L87 Difference]: Start difference. First operand 240 states and 385 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,836 INFO L93 Difference]: Finished difference Result 494 states and 795 transitions. [2021-12-15 08:56:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-15 08:56:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,838 INFO L225 Difference]: With dead ends: 494 [2021-12-15 08:56:55,838 INFO L226 Difference]: Without dead ends: 261 [2021-12-15 08:56:55,839 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 08:56:55,839 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 130 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 121 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-15 08:56:55,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 257. [2021-12-15 08:56:55,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:55,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 410 transitions. [2021-12-15 08:56:55,846 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 410 transitions. Word has length 77 [2021-12-15 08:56:55,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,846 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 410 transitions. [2021-12-15 08:56:55,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 410 transitions. [2021-12-15 08:56:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-15 08:56:55,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,847 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-15 08:56:55,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 08:56:55,848 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1334617676, now seen corresponding path program 1 times [2021-12-15 08:56:55,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154801516] [2021-12-15 08:56:55,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-15 08:56:55,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154801516] [2021-12-15 08:56:55,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154801516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45075024] [2021-12-15 08:56:55,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,874 INFO L87 Difference]: Start difference. First operand 257 states and 410 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 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 08:56:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:55,948 INFO L93 Difference]: Finished difference Result 511 states and 815 transitions. [2021-12-15 08:56:55,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:55,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 78 [2021-12-15 08:56:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:55,949 INFO L225 Difference]: With dead ends: 511 [2021-12-15 08:56:55,949 INFO L226 Difference]: Without dead ends: 261 [2021-12-15 08:56:55,950 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 08:56:55,950 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 131 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:55,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 119 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:55,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-15 08:56:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 257. [2021-12-15 08:56:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 0 states have call successors, (0), 0 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 08:56:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 405 transitions. [2021-12-15 08:56:55,957 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 405 transitions. Word has length 78 [2021-12-15 08:56:55,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:55,957 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 405 transitions. [2021-12-15 08:56:55,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 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 08:56:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 405 transitions. [2021-12-15 08:56:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-15 08:56:55,958 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:55,958 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:55,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 08:56:55,959 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:55,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:55,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2068596256, now seen corresponding path program 1 times [2021-12-15 08:56:55,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:55,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788861444] [2021-12-15 08:56:55,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:55,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-15 08:56:55,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:55,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788861444] [2021-12-15 08:56:55,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788861444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:55,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:55,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:55,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125839179] [2021-12-15 08:56:55,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:55,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:55,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:55,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:55,984 INFO L87 Difference]: Start difference. First operand 257 states and 405 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 08:56:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,049 INFO L93 Difference]: Finished difference Result 525 states and 829 transitions. [2021-12-15 08:56:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 91 [2021-12-15 08:56:56,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,051 INFO L225 Difference]: With dead ends: 525 [2021-12-15 08:56:56,051 INFO L226 Difference]: Without dead ends: 275 [2021-12-15 08:56:56,052 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 08:56:56,052 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 134 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:56,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 130 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:56,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-12-15 08:56:56,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 272. [2021-12-15 08:56:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.5682656826568266) internal successors, (425), 271 states have internal predecessors, (425), 0 states have call successors, (0), 0 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 08:56:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 425 transitions. [2021-12-15 08:56:56,059 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 425 transitions. Word has length 91 [2021-12-15 08:56:56,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,059 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 425 transitions. [2021-12-15 08:56:56,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 08:56:56,060 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 425 transitions. [2021-12-15 08:56:56,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 08:56:56,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,060 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:56,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 08:56:56,061 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2097440661, now seen corresponding path program 1 times [2021-12-15 08:56:56,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270821877] [2021-12-15 08:56:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-15 08:56:56,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270821877] [2021-12-15 08:56:56,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270821877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917172988] [2021-12-15 08:56:56,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,085 INFO L87 Difference]: Start difference. First operand 272 states and 425 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 08:56:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,165 INFO L93 Difference]: Finished difference Result 540 states and 843 transitions. [2021-12-15 08:56:56,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 92 [2021-12-15 08:56:56,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,167 INFO L225 Difference]: With dead ends: 540 [2021-12-15 08:56:56,167 INFO L226 Difference]: Without dead ends: 275 [2021-12-15 08:56:56,169 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 08:56:56,170 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 133 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:56,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 118 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-12-15 08:56:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 272. [2021-12-15 08:56:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.5461254612546125) internal successors, (419), 271 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 08:56:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 419 transitions. [2021-12-15 08:56:56,176 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 419 transitions. Word has length 92 [2021-12-15 08:56:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,180 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 419 transitions. [2021-12-15 08:56:56,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 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 08:56:56,181 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 419 transitions. [2021-12-15 08:56:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 08:56:56,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,182 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:56:56,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 08:56:56,182 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1667890400, now seen corresponding path program 1 times [2021-12-15 08:56:56,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430413614] [2021-12-15 08:56:56,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-15 08:56:56,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430413614] [2021-12-15 08:56:56,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430413614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954921154] [2021-12-15 08:56:56,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,234 INFO L87 Difference]: Start difference. First operand 272 states and 419 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 08:56:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,327 INFO L93 Difference]: Finished difference Result 589 states and 915 transitions. [2021-12-15 08:56:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 99 [2021-12-15 08:56:56,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,330 INFO L225 Difference]: With dead ends: 589 [2021-12-15 08:56:56,330 INFO L226 Difference]: Without dead ends: 324 [2021-12-15 08:56:56,331 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 08:56:56,331 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 102 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:56,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 126 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-12-15 08:56:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 322. [2021-12-15 08:56:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.5669781931464175) internal successors, (503), 321 states have internal predecessors, (503), 0 states have call successors, (0), 0 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 08:56:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 503 transitions. [2021-12-15 08:56:56,339 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 503 transitions. Word has length 99 [2021-12-15 08:56:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,339 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 503 transitions. [2021-12-15 08:56:56,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 08:56:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 503 transitions. [2021-12-15 08:56:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-15 08:56:56,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,340 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:56,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 08:56:56,341 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1592266571, now seen corresponding path program 1 times [2021-12-15 08:56:56,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372627161] [2021-12-15 08:56:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,376 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-15 08:56:56,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372627161] [2021-12-15 08:56:56,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372627161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794645364] [2021-12-15 08:56:56,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,378 INFO L87 Difference]: Start difference. First operand 322 states and 503 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 08:56:56,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,472 INFO L93 Difference]: Finished difference Result 640 states and 999 transitions. [2021-12-15 08:56:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 100 [2021-12-15 08:56:56,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,475 INFO L225 Difference]: With dead ends: 640 [2021-12-15 08:56:56,475 INFO L226 Difference]: Without dead ends: 325 [2021-12-15 08:56:56,475 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 08:56:56,476 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 106 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:56,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 121 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-12-15 08:56:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2021-12-15 08:56:56,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.562111801242236) internal successors, (503), 322 states have internal predecessors, (503), 0 states have call successors, (0), 0 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 08:56:56,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 503 transitions. [2021-12-15 08:56:56,483 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 503 transitions. Word has length 100 [2021-12-15 08:56:56,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,483 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 503 transitions. [2021-12-15 08:56:56,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 08:56:56,484 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 503 transitions. [2021-12-15 08:56:56,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-15 08:56:56,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,485 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:56,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 08:56:56,485 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2021-12-15 08:56:56,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89315337] [2021-12-15 08:56:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-15 08:56:56,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89315337] [2021-12-15 08:56:56,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89315337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707830921] [2021-12-15 08:56:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,520 INFO L87 Difference]: Start difference. First operand 323 states and 503 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 08:56:56,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,549 INFO L93 Difference]: Finished difference Result 952 states and 1485 transitions. [2021-12-15 08:56:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-15 08:56:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,552 INFO L225 Difference]: With dead ends: 952 [2021-12-15 08:56:56,552 INFO L226 Difference]: Without dead ends: 636 [2021-12-15 08:56:56,552 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 08:56:56,553 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 448 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 08:56:56,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 448 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:56:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-12-15 08:56:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2021-12-15 08:56:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 1.5543307086614173) internal successors, (987), 635 states have internal predecessors, (987), 0 states have call successors, (0), 0 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 08:56:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 987 transitions. [2021-12-15 08:56:56,570 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 987 transitions. Word has length 104 [2021-12-15 08:56:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,570 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 987 transitions. [2021-12-15 08:56:56,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 08:56:56,571 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 987 transitions. [2021-12-15 08:56:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-15 08:56:56,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,572 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:56,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 08:56:56,572 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2021-12-15 08:56:56,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62969181] [2021-12-15 08:56:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-15 08:56:56,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62969181] [2021-12-15 08:56:56,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62969181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247588321] [2021-12-15 08:56:56,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,607 INFO L87 Difference]: Start difference. First operand 636 states and 987 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 08:56:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,635 INFO L93 Difference]: Finished difference Result 1556 states and 2419 transitions. [2021-12-15 08:56:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-15 08:56:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,638 INFO L225 Difference]: With dead ends: 1556 [2021-12-15 08:56:56,638 INFO L226 Difference]: Without dead ends: 927 [2021-12-15 08:56:56,639 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 08:56:56,639 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 130 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 457 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 08:56:56,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 457 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:56:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-12-15 08:56:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 927. [2021-12-15 08:56:56,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 926 states have (on average 1.5518358531317495) internal successors, (1437), 926 states have internal predecessors, (1437), 0 states have call successors, (0), 0 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 08:56:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1437 transitions. [2021-12-15 08:56:56,657 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1437 transitions. Word has length 104 [2021-12-15 08:56:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,658 INFO L470 AbstractCegarLoop]: Abstraction has 927 states and 1437 transitions. [2021-12-15 08:56:56,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 08:56:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1437 transitions. [2021-12-15 08:56:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-15 08:56:56,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,659 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:56,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 08:56:56,660 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash 178348971, now seen corresponding path program 1 times [2021-12-15 08:56:56,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107074683] [2021-12-15 08:56:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-15 08:56:56,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107074683] [2021-12-15 08:56:56,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107074683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353107576] [2021-12-15 08:56:56,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,680 INFO L87 Difference]: Start difference. First operand 927 states and 1437 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,710 INFO L93 Difference]: Finished difference Result 2142 states and 3323 transitions. [2021-12-15 08:56:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-15 08:56:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,713 INFO L225 Difference]: With dead ends: 2142 [2021-12-15 08:56:56,714 INFO L226 Difference]: Without dead ends: 1222 [2021-12-15 08:56:56,715 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 08:56:56,715 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 132 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 330 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 08:56:56,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 330 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:56:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-12-15 08:56:56,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-12-15 08:56:56,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 1.5487305487305487) internal successors, (1891), 1221 states have internal predecessors, (1891), 0 states have call successors, (0), 0 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 08:56:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1891 transitions. [2021-12-15 08:56:56,742 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1891 transitions. Word has length 104 [2021-12-15 08:56:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,743 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1891 transitions. [2021-12-15 08:56:56,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1891 transitions. [2021-12-15 08:56:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-15 08:56:56,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,744 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:56,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 08:56:56,745 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,745 INFO L85 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2021-12-15 08:56:56,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619547277] [2021-12-15 08:56:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-15 08:56:56,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619547277] [2021-12-15 08:56:56,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619547277] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399146586] [2021-12-15 08:56:56,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,769 INFO L87 Difference]: Start difference. First operand 1222 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:56,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,803 INFO L93 Difference]: Finished difference Result 1538 states and 2383 transitions. [2021-12-15 08:56:56,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-15 08:56:56,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,807 INFO L225 Difference]: With dead ends: 1538 [2021-12-15 08:56:56,807 INFO L226 Difference]: Without dead ends: 1536 [2021-12-15 08:56:56,808 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 08:56:56,808 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 138 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 303 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 08:56:56,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 303 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:56:56,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2021-12-15 08:56:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2021-12-15 08:56:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 1.5511400651465799) internal successors, (2381), 1535 states have internal predecessors, (2381), 0 states have call successors, (0), 0 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 08:56:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2381 transitions. [2021-12-15 08:56:56,857 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2381 transitions. Word has length 106 [2021-12-15 08:56:56,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:56,858 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 2381 transitions. [2021-12-15 08:56:56,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:56:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2381 transitions. [2021-12-15 08:56:56,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-15 08:56:56,861 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:56,861 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 08:56:56,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 08:56:56,861 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:56,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash 448443832, now seen corresponding path program 1 times [2021-12-15 08:56:56,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:56,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813040136] [2021-12-15 08:56:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:56,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-15 08:56:56,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:56,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813040136] [2021-12-15 08:56:56,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813040136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:56,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:56,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:56,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743246236] [2021-12-15 08:56:56,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:56,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:56,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:56,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:56,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:56,891 INFO L87 Difference]: Start difference. First operand 1536 states and 2381 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 08:56:56,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:56,976 INFO L93 Difference]: Finished difference Result 3080 states and 4768 transitions. [2021-12-15 08:56:56,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:56,977 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 191 [2021-12-15 08:56:56,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:56,981 INFO L225 Difference]: With dead ends: 3080 [2021-12-15 08:56:56,981 INFO L226 Difference]: Without dead ends: 1551 [2021-12-15 08:56:56,983 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 08:56:56,983 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 13 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:56,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 259 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2021-12-15 08:56:57,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1536. [2021-12-15 08:56:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 1.5315960912052118) internal successors, (2351), 1535 states have internal predecessors, (2351), 0 states have call successors, (0), 0 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 08:56:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2351 transitions. [2021-12-15 08:56:57,012 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2351 transitions. Word has length 191 [2021-12-15 08:56:57,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:57,013 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 2351 transitions. [2021-12-15 08:56:57,013 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 08:56:57,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2351 transitions. [2021-12-15 08:56:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-15 08:56:57,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:57,016 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:57,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 08:56:57,016 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:57,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1514530880, now seen corresponding path program 1 times [2021-12-15 08:56:57,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:57,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103070305] [2021-12-15 08:56:57,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:57,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-15 08:56:57,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:57,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103070305] [2021-12-15 08:56:57,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103070305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:57,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:57,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:57,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215266260] [2021-12-15 08:56:57,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:57,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:57,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:57,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:57,049 INFO L87 Difference]: Start difference. First operand 1536 states and 2351 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 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 08:56:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:57,154 INFO L93 Difference]: Finished difference Result 3082 states and 4708 transitions. [2021-12-15 08:56:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:57,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 211 [2021-12-15 08:56:57,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:57,158 INFO L225 Difference]: With dead ends: 3082 [2021-12-15 08:56:57,159 INFO L226 Difference]: Without dead ends: 1553 [2021-12-15 08:56:57,160 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 08:56:57,160 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:57,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 258 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-12-15 08:56:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1536. [2021-12-15 08:56:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 1.5120521172638437) internal successors, (2321), 1535 states have internal predecessors, (2321), 0 states have call successors, (0), 0 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 08:56:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2321 transitions. [2021-12-15 08:56:57,195 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2321 transitions. Word has length 211 [2021-12-15 08:56:57,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:57,195 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 2321 transitions. [2021-12-15 08:56:57,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 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 08:56:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2321 transitions. [2021-12-15 08:56:57,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-15 08:56:57,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:57,201 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:57,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 08:56:57,201 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash -699281398, now seen corresponding path program 1 times [2021-12-15 08:56:57,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:57,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690989276] [2021-12-15 08:56:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:57,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-15 08:56:57,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:57,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690989276] [2021-12-15 08:56:57,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690989276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:57,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:57,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:57,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131542096] [2021-12-15 08:56:57,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:57,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:57,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:57,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:57,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:57,237 INFO L87 Difference]: Start difference. First operand 1536 states and 2321 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 08:56:57,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:57,351 INFO L93 Difference]: Finished difference Result 3345 states and 5046 transitions. [2021-12-15 08:56:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:57,352 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 232 [2021-12-15 08:56:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:57,356 INFO L225 Difference]: With dead ends: 3345 [2021-12-15 08:56:57,356 INFO L226 Difference]: Without dead ends: 1751 [2021-12-15 08:56:57,358 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 08:56:57,358 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 93 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:57,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 209 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:57,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-15 08:56:57,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1691. [2021-12-15 08:56:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1690 states have (on average 1.4331360946745562) internal successors, (2422), 1690 states have internal predecessors, (2422), 0 states have call successors, (0), 0 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 08:56:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2422 transitions. [2021-12-15 08:56:57,389 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2422 transitions. Word has length 232 [2021-12-15 08:56:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:57,389 INFO L470 AbstractCegarLoop]: Abstraction has 1691 states and 2422 transitions. [2021-12-15 08:56:57,389 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 08:56:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2422 transitions. [2021-12-15 08:56:57,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-15 08:56:57,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:57,393 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:56:57,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 08:56:57,393 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:57,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1562291852, now seen corresponding path program 1 times [2021-12-15 08:56:57,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:57,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220080735] [2021-12-15 08:56:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:57,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-15 08:56:57,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:57,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220080735] [2021-12-15 08:56:57,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220080735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:57,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:57,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:57,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128151738] [2021-12-15 08:56:57,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:57,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:57,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:57,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:57,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:57,423 INFO L87 Difference]: Start difference. First operand 1691 states and 2422 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 08:56:57,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:57,553 INFO L93 Difference]: Finished difference Result 3640 states and 5228 transitions. [2021-12-15 08:56:57,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:57,553 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 232 [2021-12-15 08:56:57,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:57,558 INFO L225 Difference]: With dead ends: 3640 [2021-12-15 08:56:57,558 INFO L226 Difference]: Without dead ends: 1911 [2021-12-15 08:56:57,559 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 08:56:57,560 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 95 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:57,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 207 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2021-12-15 08:56:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1846. [2021-12-15 08:56:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 1.431978319783198) internal successors, (2642), 1845 states have internal predecessors, (2642), 0 states have call successors, (0), 0 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 08:56:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2642 transitions. [2021-12-15 08:56:57,596 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2642 transitions. Word has length 232 [2021-12-15 08:56:57,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:57,596 INFO L470 AbstractCegarLoop]: Abstraction has 1846 states and 2642 transitions. [2021-12-15 08:56:57,596 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 08:56:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2642 transitions. [2021-12-15 08:56:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-15 08:56:57,599 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:57,600 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 08:56:57,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 08:56:57,600 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:57,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash 135659551, now seen corresponding path program 1 times [2021-12-15 08:56:57,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:57,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797197233] [2021-12-15 08:56:57,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:57,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-15 08:56:57,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:57,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797197233] [2021-12-15 08:56:57,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797197233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:57,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:57,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:57,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100935582] [2021-12-15 08:56:57,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:57,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:57,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:57,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:57,633 INFO L87 Difference]: Start difference. First operand 1846 states and 2642 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 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 08:56:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:57,744 INFO L93 Difference]: Finished difference Result 3865 states and 5508 transitions. [2021-12-15 08:56:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:57,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2021-12-15 08:56:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:57,749 INFO L225 Difference]: With dead ends: 3865 [2021-12-15 08:56:57,749 INFO L226 Difference]: Without dead ends: 2026 [2021-12-15 08:56:57,751 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 08:56:57,751 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 87 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:57,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 200 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:57,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-12-15 08:56:57,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1976. [2021-12-15 08:56:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 1.3858227848101266) internal successors, (2737), 1975 states have internal predecessors, (2737), 0 states have call successors, (0), 0 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 08:56:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2737 transitions. [2021-12-15 08:56:57,784 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2737 transitions. Word has length 233 [2021-12-15 08:56:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:57,785 INFO L470 AbstractCegarLoop]: Abstraction has 1976 states and 2737 transitions. [2021-12-15 08:56:57,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 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 08:56:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2737 transitions. [2021-12-15 08:56:57,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-15 08:56:57,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:57,789 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 08:56:57,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 08:56:57,789 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:57,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:57,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1814863318, now seen corresponding path program 1 times [2021-12-15 08:56:57,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:57,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713600785] [2021-12-15 08:56:57,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:57,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 621 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-12-15 08:56:57,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:57,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713600785] [2021-12-15 08:56:57,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713600785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:57,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:57,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:57,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157408649] [2021-12-15 08:56:57,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:57,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:57,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:57,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:57,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:57,824 INFO L87 Difference]: Start difference. First operand 1976 states and 2737 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 08:56:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:57,883 INFO L93 Difference]: Finished difference Result 5909 states and 8184 transitions. [2021-12-15 08:56:57,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:57,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 262 [2021-12-15 08:56:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:57,893 INFO L225 Difference]: With dead ends: 5909 [2021-12-15 08:56:57,893 INFO L226 Difference]: Without dead ends: 3940 [2021-12-15 08:56:57,894 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 08:56:57,895 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 126 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:57,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 482 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:56:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2021-12-15 08:56:57,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3938. [2021-12-15 08:56:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3937 states have (on average 1.3848107696215393) internal successors, (5452), 3937 states have internal predecessors, (5452), 0 states have call successors, (0), 0 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 08:56:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5452 transitions. [2021-12-15 08:56:57,962 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5452 transitions. Word has length 262 [2021-12-15 08:56:57,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:57,962 INFO L470 AbstractCegarLoop]: Abstraction has 3938 states and 5452 transitions. [2021-12-15 08:56:57,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 08:56:57,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5452 transitions. [2021-12-15 08:56:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-15 08:56:57,968 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:57,968 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 08:56:57,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 08:56:57,968 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash 446709932, now seen corresponding path program 1 times [2021-12-15 08:56:57,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:57,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468755121] [2021-12-15 08:56:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:57,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-12-15 08:56:57,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:57,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468755121] [2021-12-15 08:56:57,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468755121] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:56:57,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:56:57,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:56:57,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141823242] [2021-12-15 08:56:57,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:56:58,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:56:58,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:58,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:56:58,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:56:58,000 INFO L87 Difference]: Start difference. First operand 3938 states and 5452 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 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 08:56:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:56:58,168 INFO L93 Difference]: Finished difference Result 8315 states and 11513 transitions. [2021-12-15 08:56:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:56:58,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 262 [2021-12-15 08:56:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:56:58,178 INFO L225 Difference]: With dead ends: 8315 [2021-12-15 08:56:58,178 INFO L226 Difference]: Without dead ends: 4334 [2021-12-15 08:56:58,180 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 08:56:58,181 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 102 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:56:58,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 197 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:56:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2021-12-15 08:56:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 4214. [2021-12-15 08:56:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4214 states, 4213 states have (on average 1.3819131260384525) internal successors, (5822), 4213 states have internal predecessors, (5822), 0 states have call successors, (0), 0 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 08:56:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4214 states to 4214 states and 5822 transitions. [2021-12-15 08:56:58,284 INFO L78 Accepts]: Start accepts. Automaton has 4214 states and 5822 transitions. Word has length 262 [2021-12-15 08:56:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:56:58,285 INFO L470 AbstractCegarLoop]: Abstraction has 4214 states and 5822 transitions. [2021-12-15 08:56:58,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 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 08:56:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 4214 states and 5822 transitions. [2021-12-15 08:56:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-12-15 08:56:58,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:56:58,294 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:58,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-15 08:56:58,295 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:56:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:56:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2021-12-15 08:56:58,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:56:58,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707082410] [2021-12-15 08:56:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:58,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:56:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-15 08:56:58,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:56:58,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707082410] [2021-12-15 08:56:58,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707082410] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:56:58,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385236014] [2021-12-15 08:56:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:56:58,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:56:58,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:56:58,369 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 08:56:58,414 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 08:56:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:56:58,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:56:58,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:56:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-15 08:56:59,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:56:59,730 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-15 08:56:59,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385236014] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:56:59,731 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:56:59,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 08:56:59,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378824930] [2021-12-15 08:56:59,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:56:59,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 08:56:59,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:56:59,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 08:56:59,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 08:56:59,733 INFO L87 Difference]: Start difference. First operand 4214 states and 5822 transitions. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:00,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:00,206 INFO L93 Difference]: Finished difference Result 12964 states and 17871 transitions. [2021-12-15 08:57:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 08:57:00,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 292 [2021-12-15 08:57:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:00,232 INFO L225 Difference]: With dead ends: 12964 [2021-12-15 08:57:00,232 INFO L226 Difference]: Without dead ends: 8747 [2021-12-15 08:57:00,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:00,245 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 226 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:00,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 884 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 08:57:00,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2021-12-15 08:57:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 4888. [2021-12-15 08:57:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4888 states, 4887 states have (on average 1.3488847963986086) internal successors, (6592), 4887 states have internal predecessors, (6592), 0 states have call successors, (0), 0 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 08:57:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4888 states to 4888 states and 6592 transitions. [2021-12-15 08:57:00,419 INFO L78 Accepts]: Start accepts. Automaton has 4888 states and 6592 transitions. Word has length 292 [2021-12-15 08:57:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:00,420 INFO L470 AbstractCegarLoop]: Abstraction has 4888 states and 6592 transitions. [2021-12-15 08:57:00,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4888 states and 6592 transitions. [2021-12-15 08:57:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-12-15 08:57:00,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:00,445 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:00,488 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 08:57:00,667 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,SelfDestructingSolverStorable24 [2021-12-15 08:57:00,667 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:00,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash -230076544, now seen corresponding path program 1 times [2021-12-15 08:57:00,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:00,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741580702] [2021-12-15 08:57:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:00,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-15 08:57:00,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:00,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741580702] [2021-12-15 08:57:00,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741580702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:00,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:00,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:00,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987007308] [2021-12-15 08:57:00,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:00,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:00,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:00,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:00,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:00,729 INFO L87 Difference]: Start difference. First operand 4888 states and 6592 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:00,818 INFO L93 Difference]: Finished difference Result 12902 states and 17302 transitions. [2021-12-15 08:57:00,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:00,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2021-12-15 08:57:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:00,833 INFO L225 Difference]: With dead ends: 12902 [2021-12-15 08:57:00,833 INFO L226 Difference]: Without dead ends: 8021 [2021-12-15 08:57:00,840 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 08:57:00,840 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 77 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:00,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 445 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:00,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2021-12-15 08:57:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 8019. [2021-12-15 08:57:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8019 states, 8018 states have (on average 1.3337490646046395) internal successors, (10694), 8018 states have internal predecessors, (10694), 0 states have call successors, (0), 0 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 08:57:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8019 states to 8019 states and 10694 transitions. [2021-12-15 08:57:01,005 INFO L78 Accepts]: Start accepts. Automaton has 8019 states and 10694 transitions. Word has length 293 [2021-12-15 08:57:01,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:01,005 INFO L470 AbstractCegarLoop]: Abstraction has 8019 states and 10694 transitions. [2021-12-15 08:57:01,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8019 states and 10694 transitions. [2021-12-15 08:57:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-12-15 08:57:01,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:01,016 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:01,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-15 08:57:01,017 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:01,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:01,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1959467079, now seen corresponding path program 1 times [2021-12-15 08:57:01,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:01,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666423384] [2021-12-15 08:57:01,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:01,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 628 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-12-15 08:57:01,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:01,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666423384] [2021-12-15 08:57:01,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666423384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:01,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:01,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:01,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101271839] [2021-12-15 08:57:01,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:01,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:01,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:01,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:01,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:01,057 INFO L87 Difference]: Start difference. First operand 8019 states and 10694 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 08:57:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:01,262 INFO L93 Difference]: Finished difference Result 16295 states and 21699 transitions. [2021-12-15 08:57:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:01,263 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 297 [2021-12-15 08:57:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:01,275 INFO L225 Difference]: With dead ends: 16295 [2021-12-15 08:57:01,275 INFO L226 Difference]: Without dead ends: 8223 [2021-12-15 08:57:01,282 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 08:57:01,283 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 116 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:01,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 181 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8223 states. [2021-12-15 08:57:01,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8223 to 8013. [2021-12-15 08:57:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8013 states, 8012 states have (on average 1.3237643534697954) internal successors, (10606), 8012 states have internal predecessors, (10606), 0 states have call successors, (0), 0 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 08:57:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8013 states to 8013 states and 10606 transitions. [2021-12-15 08:57:01,424 INFO L78 Accepts]: Start accepts. Automaton has 8013 states and 10606 transitions. Word has length 297 [2021-12-15 08:57:01,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:01,424 INFO L470 AbstractCegarLoop]: Abstraction has 8013 states and 10606 transitions. [2021-12-15 08:57:01,425 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 08:57:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 8013 states and 10606 transitions. [2021-12-15 08:57:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-12-15 08:57:01,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:01,463 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:57:01,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-15 08:57:01,463 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:01,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:01,464 INFO L85 PathProgramCache]: Analyzing trace with hash 980531743, now seen corresponding path program 1 times [2021-12-15 08:57:01,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:01,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694685358] [2021-12-15 08:57:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:01,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 730 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-15 08:57:01,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:01,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694685358] [2021-12-15 08:57:01,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694685358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:01,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:01,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:01,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155567676] [2021-12-15 08:57:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:01,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:01,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:01,510 INFO L87 Difference]: Start difference. First operand 8013 states and 10606 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:01,712 INFO L93 Difference]: Finished difference Result 16467 states and 21729 transitions. [2021-12-15 08:57:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2021-12-15 08:57:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:01,724 INFO L225 Difference]: With dead ends: 16467 [2021-12-15 08:57:01,725 INFO L226 Difference]: Without dead ends: 8461 [2021-12-15 08:57:01,734 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 08:57:01,734 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 129 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:01,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 145 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8461 states. [2021-12-15 08:57:01,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8461 to 8013. [2021-12-15 08:57:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8013 states, 8012 states have (on average 1.3077883175237144) internal successors, (10478), 8012 states have internal predecessors, (10478), 0 states have call successors, (0), 0 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 08:57:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8013 states to 8013 states and 10478 transitions. [2021-12-15 08:57:01,919 INFO L78 Accepts]: Start accepts. Automaton has 8013 states and 10478 transitions. Word has length 334 [2021-12-15 08:57:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:01,919 INFO L470 AbstractCegarLoop]: Abstraction has 8013 states and 10478 transitions. [2021-12-15 08:57:01,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 8013 states and 10478 transitions. [2021-12-15 08:57:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-12-15 08:57:01,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:01,932 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:01,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-15 08:57:01,933 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:01,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:01,933 INFO L85 PathProgramCache]: Analyzing trace with hash 650041975, now seen corresponding path program 1 times [2021-12-15 08:57:01,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:01,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137471259] [2021-12-15 08:57:01,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:01,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-15 08:57:01,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:01,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137471259] [2021-12-15 08:57:01,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137471259] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:01,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071922339] [2021-12-15 08:57:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:01,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:01,987 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 08:57:02,053 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 08:57:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:02,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:02,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2021-12-15 08:57:02,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:02,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071922339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:02,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:02,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:02,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031622819] [2021-12-15 08:57:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:02,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:02,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:02,668 INFO L87 Difference]: Start difference. First operand 8013 states and 10478 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 08:57:02,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:02,883 INFO L93 Difference]: Finished difference Result 20487 states and 26787 transitions. [2021-12-15 08:57:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:02,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 372 [2021-12-15 08:57:02,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:02,904 INFO L225 Difference]: With dead ends: 20487 [2021-12-15 08:57:02,904 INFO L226 Difference]: Without dead ends: 12481 [2021-12-15 08:57:02,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 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 08:57:02,915 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 61 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:02,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 472 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12481 states. [2021-12-15 08:57:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12481 to 12481. [2021-12-15 08:57:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12481 states, 12480 states have (on average 1.30625) internal successors, (16302), 12480 states have internal predecessors, (16302), 0 states have call successors, (0), 0 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 08:57:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12481 states to 12481 states and 16302 transitions. [2021-12-15 08:57:03,192 INFO L78 Accepts]: Start accepts. Automaton has 12481 states and 16302 transitions. Word has length 372 [2021-12-15 08:57:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:03,193 INFO L470 AbstractCegarLoop]: Abstraction has 12481 states and 16302 transitions. [2021-12-15 08:57:03,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 08:57:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 12481 states and 16302 transitions. [2021-12-15 08:57:03,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-12-15 08:57:03,211 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:03,211 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 08:57:03,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-15 08:57:03,443 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,SelfDestructingSolverStorable28 [2021-12-15 08:57:03,444 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:03,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash -590181313, now seen corresponding path program 1 times [2021-12-15 08:57:03,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:03,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503701473] [2021-12-15 08:57:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:03,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-15 08:57:03,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:03,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503701473] [2021-12-15 08:57:03,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503701473] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:03,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021471928] [2021-12-15 08:57:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:03,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:03,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:03,505 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 08:57:03,527 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 08:57:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:03,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:03,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-15 08:57:04,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-15 08:57:04,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021471928] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:04,372 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:04,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 08:57:04,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645790535] [2021-12-15 08:57:04,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:04,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 08:57:04,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:04,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 08:57:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 08:57:04,374 INFO L87 Difference]: Start difference. First operand 12481 states and 16302 transitions. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 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 08:57:04,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:04,782 INFO L93 Difference]: Finished difference Result 27427 states and 35819 transitions. [2021-12-15 08:57:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 08:57:04,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 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 374 [2021-12-15 08:57:04,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:04,811 INFO L225 Difference]: With dead ends: 27427 [2021-12-15 08:57:04,811 INFO L226 Difference]: Without dead ends: 14924 [2021-12-15 08:57:04,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 747 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 08:57:04,824 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 238 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:04,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 511 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 08:57:04,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14924 states. [2021-12-15 08:57:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14924 to 12439. [2021-12-15 08:57:05,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12439 states, 12438 states have (on average 1.2934555394758) internal successors, (16088), 12438 states have internal predecessors, (16088), 0 states have call successors, (0), 0 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 08:57:05,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12439 states to 12439 states and 16088 transitions. [2021-12-15 08:57:05,199 INFO L78 Accepts]: Start accepts. Automaton has 12439 states and 16088 transitions. Word has length 374 [2021-12-15 08:57:05,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:05,200 INFO L470 AbstractCegarLoop]: Abstraction has 12439 states and 16088 transitions. [2021-12-15 08:57:05,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 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 08:57:05,200 INFO L276 IsEmpty]: Start isEmpty. Operand 12439 states and 16088 transitions. [2021-12-15 08:57:05,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-12-15 08:57:05,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:05,223 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:05,257 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 08:57:05,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:05,442 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:05,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1273645298, now seen corresponding path program 1 times [2021-12-15 08:57:05,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558496528] [2021-12-15 08:57:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:05,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-12-15 08:57:05,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:05,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558496528] [2021-12-15 08:57:05,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558496528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:05,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:05,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:05,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034905806] [2021-12-15 08:57:05,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:05,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:05,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:05,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:05,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:05,509 INFO L87 Difference]: Start difference. First operand 12439 states and 16088 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 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 08:57:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:05,781 INFO L93 Difference]: Finished difference Result 24511 states and 31637 transitions. [2021-12-15 08:57:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:05,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 413 [2021-12-15 08:57:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:05,793 INFO L225 Difference]: With dead ends: 24511 [2021-12-15 08:57:05,793 INFO L226 Difference]: Without dead ends: 6473 [2021-12-15 08:57:05,806 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 08:57:05,807 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 25 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:05,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 262 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6473 states. [2021-12-15 08:57:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6473 to 6399. [2021-12-15 08:57:05,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 6398 states have (on average 1.3055642388246327) internal successors, (8353), 6398 states have internal predecessors, (8353), 0 states have call successors, (0), 0 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 08:57:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 8353 transitions. [2021-12-15 08:57:05,951 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 8353 transitions. Word has length 413 [2021-12-15 08:57:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:05,952 INFO L470 AbstractCegarLoop]: Abstraction has 6399 states and 8353 transitions. [2021-12-15 08:57:05,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 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 08:57:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 8353 transitions. [2021-12-15 08:57:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-12-15 08:57:05,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:05,961 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:05,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-15 08:57:05,962 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:05,962 INFO L85 PathProgramCache]: Analyzing trace with hash 381067605, now seen corresponding path program 1 times [2021-12-15 08:57:05,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:05,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288801465] [2021-12-15 08:57:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:05,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-12-15 08:57:06,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:06,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288801465] [2021-12-15 08:57:06,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288801465] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:06,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948735552] [2021-12-15 08:57:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:06,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:06,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:06,033 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 08:57:06,035 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 08:57:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:06,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:06,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-12-15 08:57:06,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-12-15 08:57:07,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948735552] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:07,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:07,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-12-15 08:57:07,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600364160] [2021-12-15 08:57:07,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:07,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 08:57:07,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:07,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 08:57:07,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:07,228 INFO L87 Difference]: Start difference. First operand 6399 states and 8353 transitions. Second operand has 8 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 08:57:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:07,444 INFO L93 Difference]: Finished difference Result 6941 states and 9081 transitions. [2021-12-15 08:57:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 08:57:07,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 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 442 [2021-12-15 08:57:07,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:07,445 INFO L225 Difference]: With dead ends: 6941 [2021-12-15 08:57:07,445 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 08:57:07,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 882 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-15 08:57:07,449 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 111 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:07,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 444 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 08:57:07,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 08:57:07,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 08:57:07,449 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 08:57:07,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 08:57:07,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 442 [2021-12-15 08:57:07,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:07,450 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 08:57:07,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 08:57:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 08:57:07,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 08:57:07,452 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 08:57:07,470 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 08:57:07,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:07,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 08:57:22,135 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 371) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L366-2(lines 366 371) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 237) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 495) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 506) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 517) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 466 468) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2021-12-15 08:57:22,136 INFO L854 garLoopResultBuilder]: At program point L202(lines 198 496) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse1 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560))) (or (and .cse0 .cse1 .cse2 .cse3 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 12292) .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2) .cse3) (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse1 .cse2 .cse3))) [2021-12-15 08:57:22,136 INFO L854 garLoopResultBuilder]: At program point L136(lines 132 518) the Hoare annotation is: (and (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) [2021-12-15 08:57:22,136 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 105) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L861 garLoopResultBuilder]: At program point L566(lines 558 568) the Hoare annotation is: true [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 337) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L335-2(lines 211 490) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 405) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 494) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 505) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 516) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L535(lines 535 539) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 241) no Hoare annotation was computed. [2021-12-15 08:57:22,137 INFO L854 garLoopResultBuilder]: At program point L205(lines 204 494) the Hoare annotation is: (let ((.cse16 (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 3)) (.cse17 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400)) (.cse15 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse18 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)) (.cse0 (not (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (not (= 4433 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse7 (not (= 4401 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse8 (not (= 4417 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse9 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse11 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse12 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse13 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (.cse14 (not (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse4 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse13 .cse14) (and .cse1 .cse16 .cse9 .cse17 .cse12 .cse11 .cse5 .cse18) (and .cse1 .cse16 .cse9 .cse17 .cse12 .cse11 .cse5 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse18 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 .cse13 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)))) [2021-12-15 08:57:22,137 INFO L854 garLoopResultBuilder]: At program point L172(lines 162 508) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4480)) (.cse1 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse1 .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 .cse1 .cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)))) [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L437(lines 437 439) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 493) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 504) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 515) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 86 556) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L472(lines 472 474) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L472-2(lines 472 474) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 309) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L307-2(lines 211 490) no Hoare annotation was computed. [2021-12-15 08:57:22,138 INFO L854 garLoopResultBuilder]: At program point L208(lines 207 493) the Hoare annotation is: (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) [2021-12-15 08:57:22,138 INFO L854 garLoopResultBuilder]: At program point L142(lines 138 516) the Hoare annotation is: (let ((.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse0 (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse5 (not (= 4433 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse7 (not (= 4417 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse8 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse9 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse11 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse10 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse12 (not (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse4 .cse6 .cse7 .cse8 .cse9 .cse11 .cse10 .cse12 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 .cse1 .cse3 .cse5 .cse4 .cse6 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2) .cse7 .cse8 .cse9 .cse11 .cse10 .cse12))) [2021-12-15 08:57:22,138 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 444) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L440-2(lines 440 444) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 345) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 277) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L275-2(lines 211 490) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L854 garLoopResultBuilder]: At program point L210(lines 209 493) the Hoare annotation is: (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 503) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 514) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 525) no Hoare annotation was computed. [2021-12-15 08:57:22,139 INFO L854 garLoopResultBuilder]: At program point L178(lines 174 504) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512)) (.cse1 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 .cse1 .cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)) (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse1 .cse2))) [2021-12-15 08:57:22,139 INFO L854 garLoopResultBuilder]: At program point L112(lines 111 525) the Hoare annotation is: (and (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L410(lines 410 412) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 379) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 502) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 513) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 524) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 480) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 480) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L854 garLoopResultBuilder]: At program point L148(lines 144 514) the Hoare annotation is: (let ((.cse0 (not (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse2 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (not (= 4433 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse5 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse7 (not (= 4401 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse8 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse10 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse11 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse9 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2) .cse6 .cse7 .cse8 .cse10 .cse11 .cse9))) [2021-12-15 08:57:22,140 INFO L861 garLoopResultBuilder]: At program point L545(lines 107 546) the Hoare annotation is: true [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 285) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 251) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2021-12-15 08:57:22,140 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 318) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L854 garLoopResultBuilder]: At program point L216(lines 114 524) the Hoare annotation is: (and (not (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4529 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4433 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4528 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4401 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4417 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 501) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 512) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 523) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L854 garLoopResultBuilder]: At program point L184(lines 180 502) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512)) (.cse1 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 .cse1 .cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)) (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse1 .cse2))) [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 485) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L450(lines 450 461) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 431) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L417-1(lines 417 431) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L450-2(lines 450 461) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 500) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 511) no Hoare annotation was computed. [2021-12-15 08:57:22,141 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 522) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 552) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L550-2(lines 550 552) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L854 garLoopResultBuilder]: At program point L154(lines 150 512) the Hoare annotation is: (let ((.cse0 (not (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse2 (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (not (= 4401 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse6 (not (= 4417 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse7 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse8 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse9 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse11 (not (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse1 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) .cse3 .cse4 .cse5 .cse6 .cse7 .cse10 .cse8 .cse9 .cse11 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (and .cse0 .cse2 .cse1 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse3 .cse4 .cse5 .cse6 .cse7 .cse10 .cse8 .cse9 .cse11 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 355) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L221-2(lines 221 223) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 389) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 499) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 510) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 521) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 427) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 08:57:22,142 INFO L854 garLoopResultBuilder]: At program point L190(lines 186 500) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse1 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (not (= 4528 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse1 .cse3 .cse2) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)) (and .cse0 .cse1 .cse3 .cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)))) [2021-12-15 08:57:22,143 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 458) no Hoare annotation was computed. [2021-12-15 08:57:22,143 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 325) no Hoare annotation was computed. [2021-12-15 08:57:22,143 INFO L858 garLoopResultBuilder]: For program point L290-1(lines 290 300) no Hoare annotation was computed. [2021-12-15 08:57:22,143 INFO L861 garLoopResultBuilder]: At program point L555(lines 22 557) the Hoare annotation is: true [2021-12-15 08:57:22,143 INFO L854 garLoopResultBuilder]: At program point L324(lines 86 556) the Hoare annotation is: false [2021-12-15 08:57:22,145 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 498) no Hoare annotation was computed. [2021-12-15 08:57:22,145 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 509) no Hoare annotation was computed. [2021-12-15 08:57:22,145 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 520) no Hoare annotation was computed. [2021-12-15 08:57:22,145 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 229) no Hoare annotation was computed. [2021-12-15 08:57:22,145 INFO L854 garLoopResultBuilder]: At program point L160(lines 156 510) the Hoare annotation is: (let ((.cse4 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (.cse0 (< 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (not (= 4433 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-15 08:57:22,145 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2021-12-15 08:57:22,145 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 08:57:22,146 INFO L854 garLoopResultBuilder]: At program point L491(lines 108 544) the Hoare annotation is: (let ((.cse17 (not (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse19 (not (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse25 (not (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse15 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse16 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse24 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (.cse8 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse28 (< 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse14 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse13 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (.cse27 (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 3)) (.cse7 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 3)) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse11 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse12 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse26 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse4 (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse3 (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse21 (not (= 4417 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse22 (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse23 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse6 (not (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse5 (not (= 4369 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse18 (not (= 4433 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse9 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2)) (.cse20 (not (= 4401 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse11 .cse0 .cse12 .cse13) (and (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) .cse14 .cse0 .cse13) (and .cse15 .cse16 .cse0 .cse13) (and .cse17 .cse3 .cse10 .cse0 .cse18 .cse9 .cse19 .cse20 .cse21 .cse22 .cse23 .cse6 .cse5 .cse24 .cse25 .cse13) (and .cse10 .cse1 .cse13) (and .cse3 .cse4 .cse22 .cse7 .cse5 .cse9 .cse26) (and .cse17 .cse3 .cse10 .cse0 .cse9 .cse18 .cse19 .cse20 .cse21 .cse23 .cse6 .cse5 .cse8 .cse24 .cse25) (and .cse15 .cse16 .cse2) (and .cse15 .cse16 .cse26) (and .cse10 .cse8 .cse11 .cse0 .cse24 .cse12) (and .cse3 .cse10 .cse0 .cse9 .cse18 .cse2 .cse20 .cse21 .cse22 .cse23 .cse5 .cse6 .cse24) (and .cse15 .cse8 .cse16 .cse0) (and .cse10 .cse1 .cse2) (and .cse3 .cse21 .cse10 .cse22 .cse23 .cse5 .cse0 .cse18 .cse9 .cse24 .cse20 .cse26) (and .cse11 .cse2 .cse12) (and .cse3 .cse4 .cse21 .cse10 .cse22 .cse23 .cse5 .cse0 .cse18 .cse9 .cse20 .cse26) (and .cse0 .cse1 .cse26) (and .cse3 .cse27 .cse22 .cse7 .cse6 .cse5 .cse9 .cse2) (and .cse14 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4416) .cse0 .cse13) (and .cse3 .cse4 .cse10 .cse14 .cse0 .cse18 .cse9 .cse20 .cse21 .cse22 .cse23 .cse5 .cse6 .cse13) (and .cse28 .cse10 .cse23 .cse0 .cse18 .cse13) (and .cse10 .cse8 .cse1) (and .cse28 .cse23 .cse14 .cse0 .cse18 .cse13) (and .cse3 .cse27 .cse22 .cse7 .cse5 .cse9 .cse26) (and .cse10 .cse1 .cse26) (and .cse10 .cse11 .cse0 .cse12 .cse26) (and .cse4 .cse3 .cse21 .cse22 .cse23 .cse6 .cse5 .cse0 .cse18 .cse9 .cse2 .cse20))) [2021-12-15 08:57:22,146 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 328) no Hoare annotation was computed. [2021-12-15 08:57:22,146 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 262) no Hoare annotation was computed. [2021-12-15 08:57:22,146 INFO L858 garLoopResultBuilder]: For program point L260-2(lines 211 490) no Hoare annotation was computed. [2021-12-15 08:57:22,146 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 397) no Hoare annotation was computed. [2021-12-15 08:57:22,146 INFO L858 garLoopResultBuilder]: For program point L393-2(lines 211 490) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 296) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L858 garLoopResultBuilder]: For program point L294-2(lines 292 300) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 497) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 508) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 519) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 542) no Hoare annotation was computed. [2021-12-15 08:57:22,147 INFO L854 garLoopResultBuilder]: At program point L196(lines 192 498) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse0 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse0 .cse3) (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 2) .cse1) (and .cse2 .cse0 .cse3 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)))) [2021-12-15 08:57:22,148 INFO L854 garLoopResultBuilder]: At program point L130(lines 126 520) the Hoare annotation is: (and (not (= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4385 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (not (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2021-12-15 08:57:22,148 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 99) no Hoare annotation was computed. [2021-12-15 08:57:22,148 INFO L858 garLoopResultBuilder]: For program point L97-2(lines 94 100) no Hoare annotation was computed. [2021-12-15 08:57:22,148 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 541) no Hoare annotation was computed. [2021-12-15 08:57:22,148 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 364) no Hoare annotation was computed. [2021-12-15 08:57:22,148 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 08:57:22,148 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 554) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 533) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L528-2(lines 527 541) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 496) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 507) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 518) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 243) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L232-2(lines 211 490) no Hoare annotation was computed. [2021-12-15 08:57:22,149 INFO L858 garLoopResultBuilder]: For program point L530(lines 530 532) no Hoare annotation was computed. [2021-12-15 08:57:22,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:22,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 08:57:22,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:57:22 BoogieIcfgContainer [2021-12-15 08:57:22,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 08:57:22,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 08:57:22,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 08:57:22,184 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 08:57:22,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:56:54" (3/4) ... [2021-12-15 08:57:22,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 08:57:22,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 08:57:22,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 08:57:22,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 08:57:22,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 08:57:22,265 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 08:57:22,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 08:57:22,265 INFO L158 Benchmark]: Toolchain (without parser) took 29033.28ms. Allocated memory was 127.9MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 97.9MB in the beginning and 952.3MB in the end (delta: -854.4MB). Peak memory consumption was 724.0MB. Max. memory is 16.1GB. [2021-12-15 08:57:22,265 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:57:22,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.52ms. Allocated memory is still 127.9MB. Free memory was 97.6MB in the beginning and 100.0MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:57:22,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.81ms. Allocated memory is still 127.9MB. Free memory was 100.0MB in the beginning and 96.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:57:22,269 INFO L158 Benchmark]: Boogie Preprocessor took 41.37ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:57:22,272 INFO L158 Benchmark]: RCFGBuilder took 590.92ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 67.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 08:57:22,272 INFO L158 Benchmark]: TraceAbstraction took 27925.51ms. Allocated memory was 127.9MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.4MB in the beginning and 963.9MB in the end (delta: -896.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2021-12-15 08:57:22,273 INFO L158 Benchmark]: Witness Printer took 83.68ms. Allocated memory is still 1.7GB. Free memory was 963.9MB in the beginning and 952.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 08:57:22,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.52ms. Allocated memory is still 127.9MB. Free memory was 97.6MB in the beginning and 100.0MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.81ms. Allocated memory is still 127.9MB. Free memory was 100.0MB in the beginning and 96.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.37ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.92ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 67.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 27925.51ms. Allocated memory was 127.9MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.4MB in the beginning and 963.9MB in the end (delta: -896.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 83.68ms. Allocated memory is still 1.7GB. Free memory was 963.9MB in the beginning and 952.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 554]: 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, 127 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.8s, OverallIterations: 32, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3679 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3679 mSDsluCounter, 8323 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2960 mSDsCounter, 898 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3351 IncrementalHoareTripleChecker+Invalid, 4249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 898 mSolverCounterUnsat, 5363 mSDtfsCounter, 3351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2691 GetRequests, 2641 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12481occurred in iteration=29, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 32 MinimizatonAttempts, 7449 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 380 NumberOfFragments, 1959 HoareAnnotationTreeSize, 22 FomulaSimplifications, 50974 FormulaSimplificationTreeSizeReduction, 6.7s HoareSimplificationTime, 22 FomulaSimplificationsInter, 139996 FormulaSimplificationTreeSizeReductionInter, 7.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 7197 NumberOfCodeBlocks, 7197 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 8266 ConstructedInterpolants, 0 QuantifiedInterpolants, 11421 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2695 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 39 InterpolantComputations, 29 PerfectInterpolantSequences, 29216/29332 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: 198]: Loop Invariant Derived loop invariant: ((((((s__s3__tmp__next_state___0 <= 4560 && 4560 <= s__state) && s__hit == 0) && s__state <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) || ((s__state < 12292 && 4560 <= s__state) && blastFlag == 0)) || ((4560 <= s__state && blastFlag == 2) && s__state <= 4560)) || ((((s__s3__tmp__next_state___0 <= 4560 && blastFlag == 1) && 4560 <= s__state) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 4560 <= s__state && blastFlag == 0 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((s__hit == 0 && s__state == 3) && blastFlag == 2) || ((((((!(4385 == s__state) && !(4352 == s__state)) && !(4369 == s__state)) && !(4368 == s__state)) && s__state < 4400) && blastFlag == 1) && 4352 <= s__state)) || ((((s__s3__tmp__next_state___0 <= 4560 && 4560 <= s__state) && s__hit == 0) && s__state <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((s__state == 4432 && blastFlag <= 4) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((s__state <= 4528 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((((((((((((((!(4400 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && 4560 <= s__s3__tmp__next_state___0) && !(4416 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__s3__tmp__next_state___0 <= 4560 && s__state == 3) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((((((!(4385 == s__state) && !(4352 == s__state)) && !(4384 == s__state)) && s__state < 4400) && !(4369 == s__state)) && 4352 <= s__state) && blastFlag == 0)) || ((((((((((((((!(4400 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 4352 <= s__state) && !(4433 == s__state)) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && blastFlag == 1) && 4560 <= s__s3__tmp__next_state___0) && !(4416 == s__state))) || ((s__state <= 4528 && 4464 <= s__state) && blastFlag == 2)) || ((s__state <= 4528 && 4464 <= s__state) && blastFlag == 0)) || (((((s__s3__tmp__next_state___0 <= 4560 && blastFlag == 1) && 4560 <= s__state) && s__hit == 0) && 4560 <= s__s3__tmp__next_state___0) && s__state <= 4560)) || ((((((((((((!(4385 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 4352 <= s__state) && !(4433 == s__state)) && blastFlag == 2) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && !(4368 == s__state)) && 4560 <= s__s3__tmp__next_state___0)) || (((s__state <= 4528 && blastFlag == 1) && 4464 <= s__state) && s__hit == 0)) || ((s__s3__tmp__next_state___0 <= 4560 && s__state == 3) && blastFlag == 2)) || (((((((((((!(4385 == s__state) && !(4417 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && !(4401 == s__state)) && blastFlag == 0)) || ((4560 <= s__state && blastFlag == 2) && s__state <= 4560)) || (((((((((((!(4385 == s__state) && !(4352 == s__state)) && !(4417 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4401 == s__state)) && blastFlag == 0)) || ((s__hit == 0 && s__state == 3) && blastFlag == 0)) || (((((((!(4385 == s__state) && s__s3__tmp__next_state___0 == 3) && !(4384 == s__state)) && s__state < 4400) && !(4368 == s__state)) && !(4369 == s__state)) && 4352 <= s__state) && blastFlag == 2)) || (((blastFlag <= 4 && s__state == 4416) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((((((((((((!(4385 == s__state) && !(4352 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && blastFlag <= 4) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && !(4368 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((((4432 < s__state && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4464) && s__hit == 0) && !(4433 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__s3__tmp__next_state___0 <= 4560 && blastFlag == 1) && s__state == 3)) || (((((4432 < s__state && s__state <= 4464) && blastFlag <= 4) && s__hit == 0) && !(4433 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((((((!(4385 == s__state) && s__s3__tmp__next_state___0 == 3) && !(4384 == s__state)) && s__state < 4400) && !(4369 == s__state)) && 4352 <= s__state) && blastFlag == 0)) || ((s__s3__tmp__next_state___0 <= 4560 && s__state == 3) && blastFlag == 0)) || ((((s__s3__tmp__next_state___0 <= 4560 && 4560 <= s__state) && s__hit == 0) && s__state <= 4560) && blastFlag == 0)) || (((((((((((!(4352 == s__state) && !(4385 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && blastFlag == 2) && !(4401 == s__state)) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: ((((((((((((!(4400 == s__state) && !(4352 == s__state)) && !(4385 == s__state)) && !(4529 == s__state)) && !(4433 == s__state)) && !(4528 == s__state)) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && !(4369 == s__state)) && !(4368 == s__state)) && !(4416 == s__state)) && blastFlag == 0 - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: !(4432 == s__state) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: (((((((4432 < s__state && s__state <= 4464) && blastFlag == 1) && s__hit == 0) && !(4433 == s__state)) || ((((4432 < s__state && s__state <= 4464) && s__hit == 0) && !(4433 == s__state)) && blastFlag == 2)) || (((((4432 < s__state && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4464) && s__hit == 0) && !(4433 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((((4432 < s__state && s__state <= 4464) && blastFlag <= 4) && s__hit == 0) && !(4433 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((((4432 < s__state && s__state <= 4464) && s__hit == 0) && !(4433 == s__state)) && blastFlag == 0) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (((((((((((((!(4400 == s__state) && !(4385 == s__state)) && !(4352 == s__state)) && s__hit == 0) && 4352 <= s__state) && blastFlag == 2) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && !(4368 == s__state)) && !(4369 == s__state)) && s__state <= 4464) && !(4416 == s__state)) || (((((((((((((!(4400 == s__state) && !(4352 == s__state)) && !(4385 == s__state)) && blastFlag <= 4) && s__hit == 0) && 4352 <= s__state) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && !(4416 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms)) || (((((((((((((!(4400 == s__state) && !(4352 == s__state)) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 4352 <= s__state) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && !(4416 == s__state)) && blastFlag == 0) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (((((s__state <= 4480 && blastFlag == 1) && 4464 <= s__state) && s__hit == 0) || ((s__state <= 4480 && 4464 <= s__state) && blastFlag == 0)) || (((s__state <= 4480 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4480 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(4400 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && !(4368 == s__state)) && 4560 <= s__s3__tmp__next_state___0) && !(4416 == s__state)) && blastFlag == 0) || (((((((((((((((!(4400 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 4352 <= s__state) && !(4433 == s__state)) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && blastFlag == 1) && 4560 <= s__s3__tmp__next_state___0) && !(4416 == s__state))) || (((((((!(4385 == s__state) && s__s3__tmp__next_state___0 == 3) && !(4384 == s__state)) && s__state < 4400) && !(4368 == s__state)) && !(4369 == s__state)) && 4352 <= s__state) && blastFlag == 2)) || (((((((!(4385 == s__state) && s__s3__tmp__next_state___0 == 3) && !(4384 == s__state)) && s__state < 4400) && !(4368 == s__state)) && !(4369 == s__state)) && 4352 <= s__state) && blastFlag == 0)) || (((((((((((((((!(4400 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && blastFlag == 2) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && 4560 <= s__s3__tmp__next_state___0) && !(4416 == s__state))) || (((((((((((((((!(4400 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && !(4401 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && !(4368 == s__state)) && 4560 <= s__s3__tmp__next_state___0) && !(4416 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((((!(4352 == s__state) && !(4385 == s__state)) && !(4384 == s__state)) && s__state < 4400) && 4352 <= s__state) && blastFlag == 0 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: !(4432 == s__state) - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: (((((s__state <= 4528 && 4464 <= s__state) && !(4528 == s__state)) && blastFlag == 0) || ((((s__state <= 4528 && blastFlag == 1) && 4464 <= s__state) && s__hit == 0) && !(4528 == s__state))) || (((s__state <= 4528 && 4464 <= s__state) && !(4528 == s__state)) && blastFlag == 2)) || ((((s__state <= 4528 && 4464 <= s__state) && s__hit == 0) && !(4528 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: ((((s__state <= 4512 && 4464 <= s__state) && blastFlag == 0) || (((s__state <= 4512 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4512 && 4464 <= s__state) && blastFlag == 2)) || (((s__state <= 4512 && blastFlag == 1) && 4464 <= s__state) && s__hit == 0) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((((((((((((!(4400 == s__state) && !(4352 == s__state)) && !(4385 == s__state)) && blastFlag <= 4) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && !(4401 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms) || (((((((((((((!(4400 == s__state) && !(4352 == s__state)) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && !(4401 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && blastFlag == 0)) || ((((((((((((!(4400 == s__state) && !(4352 == s__state)) && !(4385 == s__state)) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && blastFlag == 2) && !(4432 == s__state)) && !(4401 == s__state)) && !(4384 == s__state)) && !(4368 == s__state)) && !(4369 == s__state)) && s__state <= 4464) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((((4464 <= s__state && s__state <= 4560) && blastFlag == 0) || (((s__state <= 4528 && blastFlag == 1) && 4464 <= s__state) && s__hit == 0)) || ((4464 <= s__state && blastFlag == 2) && s__state <= 4560)) || (((s__state <= 4528 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((((!(4352 == s__state) && !(4368 == s__state)) && !(4369 == s__state)) && s__state < 4400) && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((((((((((((((!(4352 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && blastFlag <= 4) && s__hit == 0) && 4352 <= s__state) && !(4433 == s__state)) && !(4432 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4368 == s__state)) && !(4369 == s__state)) && !(4416 == s__state)) && 256 == s__s3__tmp__new_cipher__algorithms) || (((((((((((((!(4352 == s__state) && !(4385 == s__state)) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && !(4368 == s__state)) && !(4416 == s__state)) && blastFlag == 0)) || ((((((((((((!(4352 == s__state) && !(4385 == s__state)) && s__hit == 0) && !(4433 == s__state)) && 4352 <= s__state) && !(4432 == s__state)) && blastFlag == 2) && !(4417 == s__state)) && !(4384 == s__state)) && s__state <= 4464) && !(4369 == s__state)) && !(4368 == s__state)) && !(4416 == s__state)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: ((((s__state <= 4512 && 4464 <= s__state) && blastFlag == 0) || (((s__state <= 4512 && 4464 <= s__state) && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__state <= 4512 && 4464 <= s__state) && blastFlag == 2)) || (((s__state <= 4512 && blastFlag == 1) && 4464 <= s__state) && s__hit == 0) RESULT: Ultimate proved your program to be correct! [2021-12-15 08:57:22,324 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