./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY --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 48639347f82802a5c21ea0e7f3a4a45e80d4c8de2948c98fedf98384684092ae --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:05:15,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:05:15,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:05:15,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:05:15,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:05:15,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:05:15,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:05:15,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:05:15,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:05:15,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:05:15,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:05:15,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:05:15,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:05:15,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:05:15,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:05:15,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:05:15,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:05:15,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:05:15,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:05:15,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:05:15,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:05:15,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:05:15,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:05:15,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:05:15,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:05:15,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:05:15,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:05:15,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:05:15,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:05:15,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:05:15,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:05:15,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:05:15,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:05:15,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:05:15,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:05:15,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:05:15,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:05:15,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:05:15,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:05:15,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:05:15,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:05:15,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:05:15,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:05:15,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:05:15,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:05:15,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:05:15,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:05:15,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:05:15,667 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:05:15,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:05:15,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:05:15,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:05:15,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:05:15,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:05:15,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:05:15,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:05:15,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:05:15,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:05:15,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:05:15,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:05:15,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:05:15,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:05:15,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:05:15,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:05:15,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:05:15,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:05:15,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:05:15,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:05:15,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:05:15,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:05:15,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:05:15,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:05:15,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:05:15,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:05:15,672 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48639347f82802a5c21ea0e7f3a4a45e80d4c8de2948c98fedf98384684092ae [2021-11-07 08:05:15,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:05:16,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:05:16,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:05:16,009 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:05:16,009 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:05:16,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-11-07 08:05:16,085 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/data/5a698489d/7d3a9e867de54ca9a4b9f785d1a546fd/FLAG61bfda044 [2021-11-07 08:05:16,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:05:16,599 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-11-07 08:05:16,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/data/5a698489d/7d3a9e867de54ca9a4b9f785d1a546fd/FLAG61bfda044 [2021-11-07 08:05:17,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/data/5a698489d/7d3a9e867de54ca9a4b9f785d1a546fd [2021-11-07 08:05:17,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:05:17,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:05:17,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:05:17,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:05:17,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:05:17,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b30c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17, skipping insertion in model container [2021-11-07 08:05:17,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:05:17,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:05:17,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36888,36901] [2021-11-07 08:05:17,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:05:17,429 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:05:17,481 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c[36888,36901] [2021-11-07 08:05:17,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:05:17,497 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:05:17,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17 WrapperNode [2021-11-07 08:05:17,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:05:17,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:05:17,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:05:17,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:05:17,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:05:17,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:05:17,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:05:17,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:05:17,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:05:17,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:05:17,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:05:17,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:05:17,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (1/1) ... [2021-11-07 08:05:17,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:05:17,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:05:17,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:05:17,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:05:17,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:05:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:05:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:05:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:05:17,799 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 08:05:18,188 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-07 08:05:18,188 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-07 08:05:18,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:05:18,218 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 08:05:18,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:05:18 BoogieIcfgContainer [2021-11-07 08:05:18,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:05:18,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:05:18,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:05:18,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:05:18,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:05:17" (1/3) ... [2021-11-07 08:05:18,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afb37b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:05:18, skipping insertion in model container [2021-11-07 08:05:18,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:05:17" (2/3) ... [2021-11-07 08:05:18,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afb37b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:05:18, skipping insertion in model container [2021-11-07 08:05:18,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:05:18" (3/3) ... [2021-11-07 08:05:18,230 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2021-11-07 08:05:18,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:05:18,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:05:18,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:05:18,319 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 [2021-11-07 08:05:18,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:05:18,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 08:05:18,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:18,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:18,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:18,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-11-07 08:05:18,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:18,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085648067] [2021-11-07 08:05:18,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:18,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:18,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:18,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085648067] [2021-11-07 08:05:18,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085648067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:18,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:18,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:18,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679497721] [2021-11-07 08:05:18,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:18,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:18,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:18,674 INFO L87 Difference]: Start difference. First operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 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) [2021-11-07 08:05:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:18,829 INFO L93 Difference]: Finished difference Result 244 states and 419 transitions. [2021-11-07 08:05:18,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:18,831 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 [2021-11-07 08:05:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:18,841 INFO L225 Difference]: With dead ends: 244 [2021-11-07 08:05:18,842 INFO L226 Difference]: Without dead ends: 112 [2021-11-07 08:05:18,845 INFO L786 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 [2021-11-07 08:05:18,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-07 08:05:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-11-07 08:05:18,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-11-07 08:05:18,887 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-11-07 08:05:18,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:18,888 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-11-07 08:05:18,889 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) [2021-11-07 08:05:18,889 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-11-07 08:05:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 08:05:18,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:18,891 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:18,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:05:18,891 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:18,894 INFO L85 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-11-07 08:05:18,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:18,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058633798] [2021-11-07 08:05:18,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:18,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:18,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:18,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058633798] [2021-11-07 08:05:18,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058633798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:18,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:18,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:18,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539930076] [2021-11-07 08:05:18,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:18,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:18,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:18,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:18,983 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:19,129 INFO L93 Difference]: Finished difference Result 232 states and 354 transitions. [2021-11-07 08:05:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 08:05:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:19,135 INFO L225 Difference]: With dead ends: 232 [2021-11-07 08:05:19,137 INFO L226 Difference]: Without dead ends: 130 [2021-11-07 08:05:19,138 INFO L786 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 [2021-11-07 08:05:19,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-07 08:05:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2021-11-07 08:05:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-11-07 08:05:19,168 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-11-07 08:05:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:19,169 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-11-07 08:05:19,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-11-07 08:05:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 08:05:19,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:19,173 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:19,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:05:19,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:19,175 INFO L85 PathProgramCache]: Analyzing trace with hash -114868729, now seen corresponding path program 1 times [2021-11-07 08:05:19,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:19,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640477249] [2021-11-07 08:05:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:19,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 08:05:19,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:19,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640477249] [2021-11-07 08:05:19,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640477249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:19,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:19,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:19,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250345271] [2021-11-07 08:05:19,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:19,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:19,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:19,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:19,330 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:19,434 INFO L93 Difference]: Finished difference Result 266 states and 402 transitions. [2021-11-07 08:05:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:19,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 08:05:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:19,436 INFO L225 Difference]: With dead ends: 266 [2021-11-07 08:05:19,436 INFO L226 Difference]: Without dead ends: 149 [2021-11-07 08:05:19,437 INFO L786 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 [2021-11-07 08:05:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-07 08:05:19,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2021-11-07 08:05:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-11-07 08:05:19,450 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-11-07 08:05:19,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:19,450 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-11-07 08:05:19,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-11-07 08:05:19,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 08:05:19,453 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:19,454 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:19,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:05:19,454 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:19,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:19,455 INFO L85 PathProgramCache]: Analyzing trace with hash -682645784, now seen corresponding path program 1 times [2021-11-07 08:05:19,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:19,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977338551] [2021-11-07 08:05:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:19,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 08:05:19,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:19,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977338551] [2021-11-07 08:05:19,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977338551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:19,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:19,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:19,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908750472] [2021-11-07 08:05:19,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:19,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:19,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:19,601 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:19,776 INFO L93 Difference]: Finished difference Result 328 states and 496 transitions. [2021-11-07 08:05:19,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:19,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 08:05:19,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:19,780 INFO L225 Difference]: With dead ends: 328 [2021-11-07 08:05:19,780 INFO L226 Difference]: Without dead ends: 193 [2021-11-07 08:05:19,783 INFO L786 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 [2021-11-07 08:05:19,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-07 08:05:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2021-11-07 08:05:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4184782608695652) internal successors, (261), 184 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2021-11-07 08:05:19,814 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 67 [2021-11-07 08:05:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:19,818 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2021-11-07 08:05:19,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2021-11-07 08:05:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 08:05:19,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:19,823 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:19,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:05:19,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:19,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1806883178, now seen corresponding path program 1 times [2021-11-07 08:05:19,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:19,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808705954] [2021-11-07 08:05:19,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:19,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 08:05:19,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:19,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808705954] [2021-11-07 08:05:19,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808705954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:19,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:19,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:19,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968626019] [2021-11-07 08:05:19,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:19,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:19,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:19,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:19,911 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:20,027 INFO L93 Difference]: Finished difference Result 383 states and 548 transitions. [2021-11-07 08:05:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:20,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 08:05:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:20,029 INFO L225 Difference]: With dead ends: 383 [2021-11-07 08:05:20,030 INFO L226 Difference]: Without dead ends: 208 [2021-11-07 08:05:20,031 INFO L786 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 [2021-11-07 08:05:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-07 08:05:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2021-11-07 08:05:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.4039408866995073) internal successors, (285), 203 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 285 transitions. [2021-11-07 08:05:20,051 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 285 transitions. Word has length 67 [2021-11-07 08:05:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:20,052 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 285 transitions. [2021-11-07 08:05:20,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 285 transitions. [2021-11-07 08:05:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 08:05:20,054 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:20,054 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:20,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:05:20,055 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:20,055 INFO L85 PathProgramCache]: Analyzing trace with hash 170492736, now seen corresponding path program 1 times [2021-11-07 08:05:20,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:20,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896682262] [2021-11-07 08:05:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:20,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-07 08:05:20,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:20,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896682262] [2021-11-07 08:05:20,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896682262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:20,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:20,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:20,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990111353] [2021-11-07 08:05:20,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:20,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:20,142 INFO L87 Difference]: Start difference. First operand 204 states and 285 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:20,259 INFO L93 Difference]: Finished difference Result 422 states and 598 transitions. [2021-11-07 08:05:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:20,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 08:05:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:20,269 INFO L225 Difference]: With dead ends: 422 [2021-11-07 08:05:20,269 INFO L226 Difference]: Without dead ends: 228 [2021-11-07 08:05:20,270 INFO L786 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 [2021-11-07 08:05:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-07 08:05:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2021-11-07 08:05:20,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 224 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2021-11-07 08:05:20,295 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 311 transitions. Word has length 83 [2021-11-07 08:05:20,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:20,296 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 311 transitions. [2021-11-07 08:05:20,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 311 transitions. [2021-11-07 08:05:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 08:05:20,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:20,302 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:20,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:05:20,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:20,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1976749000, now seen corresponding path program 1 times [2021-11-07 08:05:20,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:20,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807208208] [2021-11-07 08:05:20,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:20,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-07 08:05:20,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:20,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807208208] [2021-11-07 08:05:20,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807208208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:20,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:20,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:20,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081201971] [2021-11-07 08:05:20,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:20,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:20,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:20,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:20,437 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:20,486 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2021-11-07 08:05:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:20,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-07 08:05:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:20,491 INFO L225 Difference]: With dead ends: 652 [2021-11-07 08:05:20,491 INFO L226 Difference]: Without dead ends: 437 [2021-11-07 08:05:20,492 INFO L786 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 [2021-11-07 08:05:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-11-07 08:05:20,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2021-11-07 08:05:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.3761467889908257) internal successors, (600), 436 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 600 transitions. [2021-11-07 08:05:20,506 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 600 transitions. Word has length 103 [2021-11-07 08:05:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:20,506 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 600 transitions. [2021-11-07 08:05:20,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 600 transitions. [2021-11-07 08:05:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 08:05:20,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:20,509 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:20,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 08:05:20,509 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash -102965200, now seen corresponding path program 1 times [2021-11-07 08:05:20,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:20,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851878791] [2021-11-07 08:05:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:20,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-07 08:05:20,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:20,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851878791] [2021-11-07 08:05:20,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851878791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:20,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:20,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:20,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102950907] [2021-11-07 08:05:20,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:20,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:20,552 INFO L87 Difference]: Start difference. First operand 437 states and 600 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) [2021-11-07 08:05:20,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:20,580 INFO L93 Difference]: Finished difference Result 885 states and 1214 transitions. [2021-11-07 08:05:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:20,580 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 [2021-11-07 08:05:20,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:20,584 INFO L225 Difference]: With dead ends: 885 [2021-11-07 08:05:20,584 INFO L226 Difference]: Without dead ends: 458 [2021-11-07 08:05:20,585 INFO L786 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 [2021-11-07 08:05:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-11-07 08:05:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2021-11-07 08:05:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 1.3719912472647702) internal successors, (627), 457 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 627 transitions. [2021-11-07 08:05:20,608 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 627 transitions. Word has length 104 [2021-11-07 08:05:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:20,608 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 627 transitions. [2021-11-07 08:05:20,609 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) [2021-11-07 08:05:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 627 transitions. [2021-11-07 08:05:20,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 08:05:20,610 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:20,610 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:20,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:05:20,611 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:20,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:20,611 INFO L85 PathProgramCache]: Analyzing trace with hash 736068462, now seen corresponding path program 1 times [2021-11-07 08:05:20,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:20,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205194128] [2021-11-07 08:05:20,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:20,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-07 08:05:20,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:20,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205194128] [2021-11-07 08:05:20,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205194128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:20,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:20,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:20,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335904526] [2021-11-07 08:05:20,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:20,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:20,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:20,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:20,687 INFO L87 Difference]: Start difference. First operand 458 states and 627 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:20,716 INFO L93 Difference]: Finished difference Result 932 states and 1274 transitions. [2021-11-07 08:05:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:20,718 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 [2021-11-07 08:05:20,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:20,722 INFO L225 Difference]: With dead ends: 932 [2021-11-07 08:05:20,724 INFO L226 Difference]: Without dead ends: 484 [2021-11-07 08:05:20,725 INFO L786 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 [2021-11-07 08:05:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-07 08:05:20,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2021-11-07 08:05:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.3664596273291925) internal successors, (660), 483 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 660 transitions. [2021-11-07 08:05:20,743 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 660 transitions. Word has length 104 [2021-11-07 08:05:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:20,743 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 660 transitions. [2021-11-07 08:05:20,743 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) [2021-11-07 08:05:20,744 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 660 transitions. [2021-11-07 08:05:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 08:05:20,745 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:20,745 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:20,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:05:20,746 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:20,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1108389378, now seen corresponding path program 1 times [2021-11-07 08:05:20,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:20,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269033840] [2021-11-07 08:05:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:20,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-07 08:05:20,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:20,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269033840] [2021-11-07 08:05:20,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269033840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:20,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:20,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:20,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059722283] [2021-11-07 08:05:20,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:20,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:20,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:20,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:20,810 INFO L87 Difference]: Start difference. First operand 484 states and 660 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:20,845 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2021-11-07 08:05:20,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:20,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-07 08:05:20,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:20,850 INFO L225 Difference]: With dead ends: 699 [2021-11-07 08:05:20,850 INFO L226 Difference]: Without dead ends: 697 [2021-11-07 08:05:20,850 INFO L786 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 [2021-11-07 08:05:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-11-07 08:05:20,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2021-11-07 08:05:20,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 1.3721264367816093) internal successors, (955), 696 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2021-11-07 08:05:20,884 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 105 [2021-11-07 08:05:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:20,884 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2021-11-07 08:05:20,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2021-11-07 08:05:20,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 08:05:20,891 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:20,891 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:20,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 08:05:20,892 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:20,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:20,892 INFO L85 PathProgramCache]: Analyzing trace with hash -391134295, now seen corresponding path program 1 times [2021-11-07 08:05:20,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:20,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918789979] [2021-11-07 08:05:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:20,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-07 08:05:20,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:20,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918789979] [2021-11-07 08:05:20,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918789979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:20,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:20,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:20,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104852115] [2021-11-07 08:05:20,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:20,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:20,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:20,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:20,973 INFO L87 Difference]: Start difference. First operand 697 states and 955 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:21,124 INFO L93 Difference]: Finished difference Result 1508 states and 2127 transitions. [2021-11-07 08:05:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 159 [2021-11-07 08:05:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:21,131 INFO L225 Difference]: With dead ends: 1508 [2021-11-07 08:05:21,131 INFO L226 Difference]: Without dead ends: 844 [2021-11-07 08:05:21,132 INFO L786 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 [2021-11-07 08:05:21,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-11-07 08:05:21,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 814. [2021-11-07 08:05:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4071340713407134) internal successors, (1144), 813 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1144 transitions. [2021-11-07 08:05:21,161 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1144 transitions. Word has length 159 [2021-11-07 08:05:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:21,162 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1144 transitions. [2021-11-07 08:05:21,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1144 transitions. [2021-11-07 08:05:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-07 08:05:21,166 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:21,166 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:21,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 08:05:21,167 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:21,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash -408594384, now seen corresponding path program 1 times [2021-11-07 08:05:21,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:21,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423208793] [2021-11-07 08:05:21,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:21,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-07 08:05:21,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:21,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423208793] [2021-11-07 08:05:21,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423208793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:21,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:21,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:21,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066890536] [2021-11-07 08:05:21,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:21,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:21,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:21,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:21,225 INFO L87 Difference]: Start difference. First operand 814 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:21,372 INFO L93 Difference]: Finished difference Result 1870 states and 2708 transitions. [2021-11-07 08:05:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:21,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-11-07 08:05:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:21,379 INFO L225 Difference]: With dead ends: 1870 [2021-11-07 08:05:21,380 INFO L226 Difference]: Without dead ends: 1041 [2021-11-07 08:05:21,381 INFO L786 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 [2021-11-07 08:05:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-11-07 08:05:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1003. [2021-11-07 08:05:21,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3932135728542914) internal successors, (1396), 1002 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1396 transitions. [2021-11-07 08:05:21,414 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1396 transitions. Word has length 185 [2021-11-07 08:05:21,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:21,415 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1396 transitions. [2021-11-07 08:05:21,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1396 transitions. [2021-11-07 08:05:21,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-07 08:05:21,419 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:21,420 INFO L513 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:21,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 08:05:21,420 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:21,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash -585141096, now seen corresponding path program 1 times [2021-11-07 08:05:21,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:21,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269022684] [2021-11-07 08:05:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:21,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-11-07 08:05:21,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:21,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269022684] [2021-11-07 08:05:21,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269022684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:21,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:21,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:21,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001530746] [2021-11-07 08:05:21,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:21,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:21,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:21,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:21,505 INFO L87 Difference]: Start difference. First operand 1003 states and 1396 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:21,649 INFO L93 Difference]: Finished difference Result 2126 states and 2985 transitions. [2021-11-07 08:05:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:21,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 206 [2021-11-07 08:05:21,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:21,657 INFO L225 Difference]: With dead ends: 2126 [2021-11-07 08:05:21,657 INFO L226 Difference]: Without dead ends: 1114 [2021-11-07 08:05:21,659 INFO L786 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 [2021-11-07 08:05:21,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2021-11-07 08:05:21,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1078. [2021-11-07 08:05:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 1.3853296193129063) internal successors, (1492), 1077 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1492 transitions. [2021-11-07 08:05:21,694 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1492 transitions. Word has length 206 [2021-11-07 08:05:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:21,694 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1492 transitions. [2021-11-07 08:05:21,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1492 transitions. [2021-11-07 08:05:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-07 08:05:21,700 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:21,700 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:21,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 08:05:21,700 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:21,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2110600453, now seen corresponding path program 1 times [2021-11-07 08:05:21,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:21,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119791275] [2021-11-07 08:05:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:21,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-07 08:05:21,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:21,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119791275] [2021-11-07 08:05:21,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119791275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:21,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:21,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:21,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113787797] [2021-11-07 08:05:21,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:21,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:21,767 INFO L87 Difference]: Start difference. First operand 1078 states and 1492 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:21,922 INFO L93 Difference]: Finished difference Result 2276 states and 3174 transitions. [2021-11-07 08:05:21,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:21,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-07 08:05:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:21,930 INFO L225 Difference]: With dead ends: 2276 [2021-11-07 08:05:21,930 INFO L226 Difference]: Without dead ends: 1195 [2021-11-07 08:05:21,935 INFO L786 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 [2021-11-07 08:05:21,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2021-11-07 08:05:21,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1162. [2021-11-07 08:05:21,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1161 states have (on average 1.3807062876830318) internal successors, (1603), 1161 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1603 transitions. [2021-11-07 08:05:21,972 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1603 transitions. Word has length 230 [2021-11-07 08:05:21,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:21,972 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 1603 transitions. [2021-11-07 08:05:21,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1603 transitions. [2021-11-07 08:05:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-07 08:05:21,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:21,977 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:21,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 08:05:21,978 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:21,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:21,978 INFO L85 PathProgramCache]: Analyzing trace with hash 77206407, now seen corresponding path program 1 times [2021-11-07 08:05:21,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:21,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817298303] [2021-11-07 08:05:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:21,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-07 08:05:22,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:22,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817298303] [2021-11-07 08:05:22,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817298303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:22,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:22,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:22,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978071882] [2021-11-07 08:05:22,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:22,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:22,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:22,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:22,047 INFO L87 Difference]: Start difference. First operand 1162 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:22,200 INFO L93 Difference]: Finished difference Result 2444 states and 3399 transitions. [2021-11-07 08:05:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:22,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-07 08:05:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:22,208 INFO L225 Difference]: With dead ends: 2444 [2021-11-07 08:05:22,208 INFO L226 Difference]: Without dead ends: 1291 [2021-11-07 08:05:22,211 INFO L786 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 [2021-11-07 08:05:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2021-11-07 08:05:22,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1255. [2021-11-07 08:05:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.3835725677830941) internal successors, (1735), 1254 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1735 transitions. [2021-11-07 08:05:22,252 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1735 transitions. Word has length 230 [2021-11-07 08:05:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:22,253 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1735 transitions. [2021-11-07 08:05:22,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1735 transitions. [2021-11-07 08:05:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-07 08:05:22,258 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:22,259 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:22,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 08:05:22,259 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1837554521, now seen corresponding path program 1 times [2021-11-07 08:05:22,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:22,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929289737] [2021-11-07 08:05:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:22,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:22,328 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-07 08:05:22,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:22,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929289737] [2021-11-07 08:05:22,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929289737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:22,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:22,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:22,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678839256] [2021-11-07 08:05:22,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:22,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:22,333 INFO L87 Difference]: Start difference. First operand 1255 states and 1735 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:22,481 INFO L93 Difference]: Finished difference Result 2627 states and 3657 transitions. [2021-11-07 08:05:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:22,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-11-07 08:05:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:22,491 INFO L225 Difference]: With dead ends: 2627 [2021-11-07 08:05:22,491 INFO L226 Difference]: Without dead ends: 1393 [2021-11-07 08:05:22,493 INFO L786 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 [2021-11-07 08:05:22,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2021-11-07 08:05:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1360. [2021-11-07 08:05:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 1.3914643119941132) internal successors, (1891), 1359 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) [2021-11-07 08:05:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1891 transitions. [2021-11-07 08:05:22,539 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1891 transitions. Word has length 260 [2021-11-07 08:05:22,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:22,540 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 1891 transitions. [2021-11-07 08:05:22,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1891 transitions. [2021-11-07 08:05:22,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-07 08:05:22,546 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:22,547 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:22,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 08:05:22,547 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:22,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:22,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1040904442, now seen corresponding path program 1 times [2021-11-07 08:05:22,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:22,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704046240] [2021-11-07 08:05:22,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:22,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-11-07 08:05:22,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:22,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704046240] [2021-11-07 08:05:22,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704046240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:22,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:22,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:22,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286698500] [2021-11-07 08:05:22,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:22,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:22,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:22,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:22,623 INFO L87 Difference]: Start difference. First operand 1360 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:22,789 INFO L93 Difference]: Finished difference Result 2723 states and 3783 transitions. [2021-11-07 08:05:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2021-11-07 08:05:22,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:22,798 INFO L225 Difference]: With dead ends: 2723 [2021-11-07 08:05:22,798 INFO L226 Difference]: Without dead ends: 1390 [2021-11-07 08:05:22,801 INFO L786 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 [2021-11-07 08:05:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2021-11-07 08:05:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1357. [2021-11-07 08:05:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.381268436578171) internal successors, (1873), 1356 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1873 transitions. [2021-11-07 08:05:22,846 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1873 transitions. Word has length 295 [2021-11-07 08:05:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:22,846 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1873 transitions. [2021-11-07 08:05:22,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:22,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1873 transitions. [2021-11-07 08:05:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-07 08:05:22,853 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:22,853 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:22,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 08:05:22,853 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1037565840, now seen corresponding path program 1 times [2021-11-07 08:05:22,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:22,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795684290] [2021-11-07 08:05:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:22,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1174 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-07 08:05:22,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:22,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795684290] [2021-11-07 08:05:22,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795684290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:22,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:22,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:22,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973820080] [2021-11-07 08:05:22,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:22,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:22,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:22,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:22,942 INFO L87 Difference]: Start difference. First operand 1357 states and 1873 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:23,076 INFO L93 Difference]: Finished difference Result 2705 states and 3732 transitions. [2021-11-07 08:05:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-11-07 08:05:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:23,085 INFO L225 Difference]: With dead ends: 2705 [2021-11-07 08:05:23,085 INFO L226 Difference]: Without dead ends: 1384 [2021-11-07 08:05:23,087 INFO L786 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 [2021-11-07 08:05:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2021-11-07 08:05:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1357. [2021-11-07 08:05:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.3613569321533923) internal successors, (1846), 1356 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1846 transitions. [2021-11-07 08:05:23,132 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1846 transitions. Word has length 305 [2021-11-07 08:05:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:23,133 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1846 transitions. [2021-11-07 08:05:23,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1846 transitions. [2021-11-07 08:05:23,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-07 08:05:23,140 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:23,141 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:23,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 08:05:23,141 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:23,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1729384344, now seen corresponding path program 1 times [2021-11-07 08:05:23,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:23,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374210109] [2021-11-07 08:05:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:23,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 729 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-11-07 08:05:23,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:23,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374210109] [2021-11-07 08:05:23,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374210109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:23,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:23,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:23,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369217803] [2021-11-07 08:05:23,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:23,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:23,234 INFO L87 Difference]: Start difference. First operand 1357 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:23,393 INFO L93 Difference]: Finished difference Result 2828 states and 3822 transitions. [2021-11-07 08:05:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:23,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 332 [2021-11-07 08:05:23,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:23,403 INFO L225 Difference]: With dead ends: 2828 [2021-11-07 08:05:23,403 INFO L226 Difference]: Without dead ends: 1507 [2021-11-07 08:05:23,405 INFO L786 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 [2021-11-07 08:05:23,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-11-07 08:05:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1402. [2021-11-07 08:05:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 1.3604568165596003) internal successors, (1906), 1401 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1906 transitions. [2021-11-07 08:05:23,459 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1906 transitions. Word has length 332 [2021-11-07 08:05:23,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:23,460 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 1906 transitions. [2021-11-07 08:05:23,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1906 transitions. [2021-11-07 08:05:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-07 08:05:23,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:23,469 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:23,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 08:05:23,469 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1837144220, now seen corresponding path program 1 times [2021-11-07 08:05:23,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:23,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033509730] [2021-11-07 08:05:23,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:23,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-11-07 08:05:23,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:23,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033509730] [2021-11-07 08:05:23,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033509730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:23,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:23,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:23,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341277843] [2021-11-07 08:05:23,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:23,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:23,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:23,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:23,561 INFO L87 Difference]: Start difference. First operand 1402 states and 1906 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:23,621 INFO L93 Difference]: Finished difference Result 3939 states and 5384 transitions. [2021-11-07 08:05:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:23,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 333 [2021-11-07 08:05:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:23,637 INFO L225 Difference]: With dead ends: 3939 [2021-11-07 08:05:23,637 INFO L226 Difference]: Without dead ends: 2573 [2021-11-07 08:05:23,640 INFO L786 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 [2021-11-07 08:05:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-11-07 08:05:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2571. [2021-11-07 08:05:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2570 states have (on average 1.367704280155642) internal successors, (3515), 2570 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3515 transitions. [2021-11-07 08:05:23,731 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3515 transitions. Word has length 333 [2021-11-07 08:05:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:23,731 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3515 transitions. [2021-11-07 08:05:23,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3515 transitions. [2021-11-07 08:05:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-07 08:05:23,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:23,743 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:23,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 08:05:23,743 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:23,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1564055932, now seen corresponding path program 1 times [2021-11-07 08:05:23,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:23,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358655497] [2021-11-07 08:05:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:23,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-07 08:05:23,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:23,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358655497] [2021-11-07 08:05:23,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358655497] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:05:23,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420379410] [2021-11-07 08:05:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:23,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:05:23,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:05:23,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:05:23,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:05:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:24,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:05:24,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:05:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-11-07 08:05:24,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420379410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:05:24,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:05:24,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-07 08:05:24,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933562493] [2021-11-07 08:05:24,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:05:24,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:05:24,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:05:24,993 INFO L87 Difference]: Start difference. First operand 2571 states and 3515 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:25,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:25,327 INFO L93 Difference]: Finished difference Result 5069 states and 6924 transitions. [2021-11-07 08:05:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:05:25,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 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 343 [2021-11-07 08:05:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:25,351 INFO L225 Difference]: With dead ends: 5069 [2021-11-07 08:05:25,351 INFO L226 Difference]: Without dead ends: 3832 [2021-11-07 08:05:25,354 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:05:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2021-11-07 08:05:25,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 2835. [2021-11-07 08:05:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2834 states have (on average 1.3514467184191954) internal successors, (3830), 2834 states have internal predecessors, (3830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3830 transitions. [2021-11-07 08:05:25,485 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3830 transitions. Word has length 343 [2021-11-07 08:05:25,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:25,486 INFO L470 AbstractCegarLoop]: Abstraction has 2835 states and 3830 transitions. [2021-11-07 08:05:25,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3830 transitions. [2021-11-07 08:05:25,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-11-07 08:05:25,496 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:25,496 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:25,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:05:25,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:05:25,721 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:25,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:25,722 INFO L85 PathProgramCache]: Analyzing trace with hash 61848643, now seen corresponding path program 1 times [2021-11-07 08:05:25,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:25,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726931935] [2021-11-07 08:05:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:25,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-11-07 08:05:25,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:25,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726931935] [2021-11-07 08:05:25,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726931935] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:05:25,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784354535] [2021-11-07 08:05:25,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:25,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:05:25,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:05:25,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:05:25,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 08:05:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:26,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:05:26,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:05:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-11-07 08:05:26,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784354535] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:05:26,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:05:26,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-07 08:05:26,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819574222] [2021-11-07 08:05:26,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:05:26,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:05:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:05:26,850 INFO L87 Difference]: Start difference. First operand 2835 states and 3830 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:27,173 INFO L93 Difference]: Finished difference Result 6504 states and 8791 transitions. [2021-11-07 08:05:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:05:27,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 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 369 [2021-11-07 08:05:27,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:27,195 INFO L225 Difference]: With dead ends: 6504 [2021-11-07 08:05:27,196 INFO L226 Difference]: Without dead ends: 3698 [2021-11-07 08:05:27,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:05:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2021-11-07 08:05:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 2972. [2021-11-07 08:05:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2971 states have (on average 1.3382699427802087) internal successors, (3976), 2971 states have internal predecessors, (3976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:27,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 3976 transitions. [2021-11-07 08:05:27,307 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 3976 transitions. Word has length 369 [2021-11-07 08:05:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:27,308 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 3976 transitions. [2021-11-07 08:05:27,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 3976 transitions. [2021-11-07 08:05:27,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-07 08:05:27,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:27,320 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:27,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:05:27,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-07 08:05:27,545 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1613450848, now seen corresponding path program 1 times [2021-11-07 08:05:27,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:27,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404404688] [2021-11-07 08:05:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:27,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 883 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-11-07 08:05:27,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:27,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404404688] [2021-11-07 08:05:27,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404404688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:27,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:27,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:05:27,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703808828] [2021-11-07 08:05:27,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:05:27,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:05:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:05:27,710 INFO L87 Difference]: Start difference. First operand 2972 states and 3976 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:27,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:27,877 INFO L93 Difference]: Finished difference Result 5654 states and 7451 transitions. [2021-11-07 08:05:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:05:27,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 408 [2021-11-07 08:05:27,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:27,900 INFO L225 Difference]: With dead ends: 5654 [2021-11-07 08:05:27,901 INFO L226 Difference]: Without dead ends: 1598 [2021-11-07 08:05:27,905 INFO L786 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 [2021-11-07 08:05:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2021-11-07 08:05:27,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1532. [2021-11-07 08:05:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.3383409536250817) internal successors, (2049), 1531 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:27,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2049 transitions. [2021-11-07 08:05:27,979 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2049 transitions. Word has length 408 [2021-11-07 08:05:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:27,980 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 2049 transitions. [2021-11-07 08:05:27,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:27,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2049 transitions. [2021-11-07 08:05:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2021-11-07 08:05:28,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:28,003 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:05:28,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 08:05:28,004 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:05:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:28,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1952423320, now seen corresponding path program 1 times [2021-11-07 08:05:28,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:28,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182225799] [2021-11-07 08:05:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:28,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2021-11-07 08:05:28,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:28,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182225799] [2021-11-07 08:05:28,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182225799] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:05:28,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086158653] [2021-11-07 08:05:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:28,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:05:28,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:05:28,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:05:28,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 08:05:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:28,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:05:28,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:05:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2021-11-07 08:05:29,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086158653] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:05:29,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:05:29,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-07 08:05:29,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954744194] [2021-11-07 08:05:29,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:05:29,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:29,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:05:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:05:29,551 INFO L87 Difference]: Start difference. First operand 1532 states and 2049 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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) [2021-11-07 08:05:29,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:29,720 INFO L93 Difference]: Finished difference Result 1865 states and 2499 transitions. [2021-11-07 08:05:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:05:29,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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 492 [2021-11-07 08:05:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:29,722 INFO L225 Difference]: With dead ends: 1865 [2021-11-07 08:05:29,722 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:05:29,724 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:05:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:05:29,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:05:29,725 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) [2021-11-07 08:05:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:05:29,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 492 [2021-11-07 08:05:29,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:29,726 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:05:29,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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) [2021-11-07 08:05:29,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:05:29,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:05:29,729 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:05:29,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:05:29,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 08:05:29,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:05:29,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:29,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:29,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:29,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:29,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:29,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:29,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:30,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:05:31,180 INFO L860 garLoopResultBuilder]: At program point L630(lines 622 632) the Hoare annotation is: true [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 239) no Hoare annotation was computed. [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L499(lines 499 504) no Hoare annotation was computed. [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 477) no Hoare annotation was computed. [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 466 477) no Hoare annotation was computed. [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 545) no Hoare annotation was computed. [2021-11-07 08:05:31,180 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 556) no Hoare annotation was computed. [2021-11-07 08:05:31,181 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 567) no Hoare annotation was computed. [2021-11-07 08:05:31,181 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2021-11-07 08:05:31,181 INFO L857 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2021-11-07 08:05:31,181 INFO L857 garLoopResultBuilder]: For program point L335-2(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,181 INFO L853 garLoopResultBuilder]: At program point L203(lines 202 545) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-11-07 08:05:31,181 INFO L853 garLoopResultBuilder]: At program point L170(lines 160 559) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)))) [2021-11-07 08:05:31,181 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 474) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 274) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L270-2(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L205(lines 205 544) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 555) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 566) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 72 620) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L305(lines 305 309) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L857 garLoopResultBuilder]: For program point L305-2(lines 305 309) no Hoare annotation was computed. [2021-11-07 08:05:31,182 INFO L860 garLoopResultBuilder]: At program point L206(lines 205 544) the Hoare annotation is: true [2021-11-07 08:05:31,183 INFO L853 garLoopResultBuilder]: At program point L140(lines 136 567) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2))) [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L438-2(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L240(lines 240 245) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 377) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 554) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L142(lines 142 565) no Hoare annotation was computed. [2021-11-07 08:05:31,183 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 576) no Hoare annotation was computed. [2021-11-07 08:05:31,184 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 412) no Hoare annotation was computed. [2021-11-07 08:05:31,184 INFO L857 garLoopResultBuilder]: For program point L407-2(lines 407 412) no Hoare annotation was computed. [2021-11-07 08:05:31,184 INFO L860 garLoopResultBuilder]: At program point L209(lines 208 543) the Hoare annotation is: true [2021-11-07 08:05:31,184 INFO L853 garLoopResultBuilder]: At program point L176(lines 172 555) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-11-07 08:05:31,184 INFO L853 garLoopResultBuilder]: At program point L110(lines 109 576) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-11-07 08:05:31,184 INFO L853 garLoopResultBuilder]: At program point L541(lines 106 607) the Hoare annotation is: (let ((.cse0 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse7 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse8 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse6 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse10 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse7 .cse8 .cse6) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse0 .cse6 .cse2) (and .cse4 .cse5 .cse9 .cse1 .cse2) (and .cse10 .cse2 .cse3 .cse11) (and .cse6 .cse2 .cse12) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse2 .cse3) (and .cse1 .cse12) (and .cse7 .cse8 .cse9 .cse1 .cse2) (and .cse6 .cse10 .cse11))) [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L178(lines 178 553) no Hoare annotation was computed. [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 564) no Hoare annotation was computed. [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 575) no Hoare annotation was computed. [2021-11-07 08:05:31,185 INFO L860 garLoopResultBuilder]: At program point L608(lines 105 609) the Hoare annotation is: true [2021-11-07 08:05:31,185 INFO L853 garLoopResultBuilder]: At program point L146(lines 142 565) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L378-2(lines 378 382) no Hoare annotation was computed. [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L577(lines 577 605) no Hoare annotation was computed. [2021-11-07 08:05:31,185 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 552) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 563) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 574) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 602) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L512-1(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 352) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L314-1(lines 314 328) no Hoare annotation was computed. [2021-11-07 08:05:31,186 INFO L853 garLoopResultBuilder]: At program point L215(lines 112 575) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-11-07 08:05:31,186 INFO L853 garLoopResultBuilder]: At program point L182(lines 178 553) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-11-07 08:05:31,186 INFO L857 garLoopResultBuilder]: For program point L612(lines 612 616) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 588) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L612-2(lines 612 616) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L579-2(lines 578 600) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L282(lines 282 286) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 551) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 562) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 573) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 585) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point L449(lines 449 454) no Hoare annotation was computed. [2021-11-07 08:05:31,187 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L853 garLoopResultBuilder]: At program point L152(lines 148 563) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 94) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L318-2(lines 316 328) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 517 521) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 422) no Hoare annotation was computed. [2021-11-07 08:05:31,188 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 224) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 550) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 561) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L220-2(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 572) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L853 garLoopResultBuilder]: At program point L188(lines 184 551) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L89(lines 89 93) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L89-2(lines 86 94) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L860 garLoopResultBuilder]: At program point L619(lines 19 621) the Hoare annotation is: true [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:05:31,189 INFO L857 garLoopResultBuilder]: For program point L256(lines 256 261) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L190(lines 190 549) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 560) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 571) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 492) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L853 garLoopResultBuilder]: At program point L158(lines 154 561) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)))) [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 394) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 361) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 299) no Hoare annotation was computed. [2021-11-07 08:05:31,190 INFO L853 garLoopResultBuilder]: At program point L358(lines 72 620) the Hoare annotation is: false [2021-11-07 08:05:31,191 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 548) no Hoare annotation was computed. [2021-11-07 08:05:31,191 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 559) no Hoare annotation was computed. [2021-11-07 08:05:31,191 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 570) no Hoare annotation was computed. [2021-11-07 08:05:31,191 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:05:31,191 INFO L857 garLoopResultBuilder]: For program point L590(lines 590 596) no Hoare annotation was computed. [2021-11-07 08:05:31,193 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 528) no Hoare annotation was computed. [2021-11-07 08:05:31,193 INFO L857 garLoopResultBuilder]: For program point L524-2(lines 524 528) no Hoare annotation was computed. [2021-11-07 08:05:31,193 INFO L853 garLoopResultBuilder]: At program point L194(lines 190 549) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2021-11-07 08:05:31,194 INFO L853 garLoopResultBuilder]: At program point L128(lines 124 571) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) [2021-11-07 08:05:31,194 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 463) no Hoare annotation was computed. [2021-11-07 08:05:31,194 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-11-07 08:05:31,194 INFO L857 garLoopResultBuilder]: For program point L294-2(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,194 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 104) no Hoare annotation was computed. [2021-11-07 08:05:31,194 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 547) no Hoare annotation was computed. [2021-11-07 08:05:31,195 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 558) no Hoare annotation was computed. [2021-11-07 08:05:31,195 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 569) no Hoare annotation was computed. [2021-11-07 08:05:31,195 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 101) no Hoare annotation was computed. [2021-11-07 08:05:31,195 INFO L857 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2021-11-07 08:05:31,195 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 08:05:31,195 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 618) no Hoare annotation was computed. [2021-11-07 08:05:31,196 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 496 508) no Hoare annotation was computed. [2021-11-07 08:05:31,196 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2021-11-07 08:05:31,196 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 249) no Hoare annotation was computed. [2021-11-07 08:05:31,196 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 546) no Hoare annotation was computed. [2021-11-07 08:05:31,196 INFO L857 garLoopResultBuilder]: For program point L166(lines 166 557) no Hoare annotation was computed. [2021-11-07 08:05:31,196 INFO L857 garLoopResultBuilder]: For program point L232-2(lines 210 540) no Hoare annotation was computed. [2021-11-07 08:05:31,197 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 568) no Hoare annotation was computed. [2021-11-07 08:05:31,197 INFO L853 garLoopResultBuilder]: At program point L200(lines 196 547) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-11-07 08:05:31,197 INFO L853 garLoopResultBuilder]: At program point L134(lines 130 569) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) [2021-11-07 08:05:31,200 INFO L731 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] [2021-11-07 08:05:31,202 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:05:31,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:05:31 BoogieIcfgContainer [2021-11-07 08:05:31,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:05:31,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:05:31,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:05:31,244 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:05:31,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:05:18" (3/4) ... [2021-11-07 08:05:31,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:05:31,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 08:05:31,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 08:05:31,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:05:31,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:05:31,371 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:05:31,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:05:31,373 INFO L168 Benchmark]: Toolchain (without parser) took 14313.32 ms. Allocated memory was 102.8 MB in the beginning and 241.2 MB in the end (delta: 138.4 MB). Free memory was 67.8 MB in the beginning and 167.0 MB in the end (delta: -99.2 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,373 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:05:31,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.35 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 73.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.24 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 71.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,374 INFO L168 Benchmark]: Boogie Preprocessor took 36.70 ms. Allocated memory is still 102.8 MB. Free memory was 71.0 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,375 INFO L168 Benchmark]: RCFGBuilder took 625.13 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 68.9 MB in the beginning and 101.0 MB in the end (delta: -32.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,375 INFO L168 Benchmark]: TraceAbstraction took 13020.79 ms. Allocated memory was 125.8 MB in the beginning and 241.2 MB in the end (delta: 115.3 MB). Free memory was 100.4 MB in the beginning and 175.4 MB in the end (delta: -75.1 MB). Peak memory consumption was 147.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,376 INFO L168 Benchmark]: Witness Printer took 128.12 ms. Allocated memory is still 241.2 MB. Free memory was 175.4 MB in the beginning and 167.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:05:31,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.35 ms. Allocated memory is still 102.8 MB. Free memory was 67.6 MB in the beginning and 73.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.24 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 71.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.70 ms. Allocated memory is still 102.8 MB. Free memory was 71.0 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 625.13 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 68.9 MB in the beginning and 101.0 MB in the end (delta: -32.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13020.79 ms. Allocated memory was 125.8 MB in the beginning and 241.2 MB in the end (delta: 115.3 MB). Free memory was 100.4 MB in the beginning and 175.4 MB in the end (delta: -75.1 MB). Peak memory consumption was 147.4 MB. Max. memory is 16.1 GB. * Witness Printer took 128.12 ms. Allocated memory is still 241.2 MB. Free memory was 175.4 MB in the beginning and 167.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * 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: 618]: 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, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 24, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4180 SDtfs, 1856 SDslu, 2340 SDs, 0 SdLazy, 2387 SolverSat, 589 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1282 GetRequests, 1252 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2972occurred in iteration=22, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 24 MinimizatonAttempts, 2185 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 107 NumberOfFragments, 464 HoareAnnotationTreeSize, 22 FomulaSimplifications, 4825 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 22 FomulaSimplificationsInter, 1315 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 6094 NumberOfCodeBlocks, 6094 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 6067 ConstructedInterpolants, 0 QuantifiedInterpolants, 7551 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2004 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 23494/23556 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 1) && s__state <= 4432 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((4352 <= s__state && s__state <= 4432) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state <= 4432 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((4352 <= s__state && s__state <= 4432) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || (((4352 <= s__state && blastFlag == 2) && s__state <= 4432) && s__hit == 0) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && s__state <= 4512) && 4432 <= s__state) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3) || ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((s__state <= 4560 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4)) || ((s__state <= 4560 && blastFlag == 2) && 4432 <= s__state) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((((((((((((4400 == s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3)) || (s__state == 4384 && blastFlag == 1)) || ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2)) || (blastFlag == 0 && s__state == 4368)) || ((4400 == s__state && blastFlag == 2) && s__hit == 0)) || ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528)) || ((blastFlag == 2 && s__hit == 0) && s__state <= 3)) || ((s__state == 4416 && s__hit == 0) && blastFlag <= 4)) || (s__s3__tmp__next_state___0 <= 4560 && s__state <= 3)) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (((s__state <= 4448 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && s__state <= 4448) && 4432 <= s__state) - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4464) || (((4432 <= s__state && s__state <= 4464) && s__hit == 0) && blastFlag <= 4) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: ((s__state <= 4480 && blastFlag == 2) && 4432 <= s__state) || (((s__state <= 4480 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && s__state <= 4512) && 4432 <= s__state) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 08:05:31,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e58528-88df-48f2-8af2-8c08306923b5/bin/uautomizer-AkOaLMaTGY/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