./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt --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 ca35bd50d888047fd624bd95d9bb19453630de07 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:34:14,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:34:14,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:34:14,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:34:14,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:34:14,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:34:14,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:34:14,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:34:14,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:34:14,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:34:14,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:34:14,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:34:14,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:34:14,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:34:14,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:34:14,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:34:14,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:34:14,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:34:14,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:34:14,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:34:14,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:34:14,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:34:14,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:34:14,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:34:14,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:34:14,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:34:14,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:34:14,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:34:14,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:34:14,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:34:14,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:34:14,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:34:14,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:34:14,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:34:14,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:34:14,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:34:14,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:34:14,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:34:14,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:34:14,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:34:14,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:34:14,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:34:14,635 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:34:14,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:34:14,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:34:14,637 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:34:14,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:34:14,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:34:14,647 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:34:14,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:34:14,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:34:14,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:34:14,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:34:14,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:34:14,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:34:14,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:34:14,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:34:14,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:34:14,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:34:14,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:34:14,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:34:14,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:34:14,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:34:14,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:34:14,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:34:14,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:34:14,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:34:14,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:34:14,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:34:14,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:34:14,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:34:14,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:34:14,654 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_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca35bd50d888047fd624bd95d9bb19453630de07 [2021-10-13 00:34:14,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:34:15,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:34:15,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:34:15,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:34:15,039 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:34:15,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-10-13 00:34:15,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/data/b5b298b32/c3095c9317184f3d97ab16ef717f5033/FLAGd8b230cbf [2021-10-13 00:34:15,663 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:34:15,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-10-13 00:34:15,671 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/data/b5b298b32/c3095c9317184f3d97ab16ef717f5033/FLAGd8b230cbf [2021-10-13 00:34:16,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/data/b5b298b32/c3095c9317184f3d97ab16ef717f5033 [2021-10-13 00:34:16,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:34:16,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:34:16,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:34:16,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:34:16,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:34:16,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2514e69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16, skipping insertion in model container [2021-10-13 00:34:16,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:34:16,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:34:16,304 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_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[13706,13719] [2021-10-13 00:34:16,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:34:16,319 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:34:16,344 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_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[13706,13719] [2021-10-13 00:34:16,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:34:16,361 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:34:16,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16 WrapperNode [2021-10-13 00:34:16,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:34:16,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:34:16,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:34:16,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:34:16,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:34:16,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:34:16,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:34:16,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:34:16,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:34:16,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:34:16,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:34:16,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:34:16,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (1/1) ... [2021-10-13 00:34:16,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:34:16,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:16,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:34:16,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:34:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:34:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:34:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:34:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:34:16,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:34:16,920 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 00:34:16,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:16 BoogieIcfgContainer [2021-10-13 00:34:16,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:34:16,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:34:16,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:34:16,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:34:16,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:34:16" (1/3) ... [2021-10-13 00:34:16,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397a5836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:34:16, skipping insertion in model container [2021-10-13 00:34:16,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:16" (2/3) ... [2021-10-13 00:34:16,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397a5836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:34:16, skipping insertion in model container [2021-10-13 00:34:16,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:16" (3/3) ... [2021-10-13 00:34:16,931 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2021-10-13 00:34:16,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:34:16,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:34:17,018 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:34:17,036 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:34:17,036 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:34:17,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 00:34:17,070 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:17,071 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 00:34:17,072 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:17,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:17,078 INFO L82 PathProgramCache]: Analyzing trace with hash 28699930, now seen corresponding path program 1 times [2021-10-13 00:34:17,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:17,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031778408] [2021-10-13 00:34:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:17,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:17,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:17,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031778408] [2021-10-13 00:34:17,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031778408] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:17,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:17,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:17,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727235958] [2021-10-13 00:34:17,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:17,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:17,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:17,329 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:17,444 INFO L93 Difference]: Finished difference Result 131 states and 218 transitions. [2021-10-13 00:34:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:17,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-10-13 00:34:17,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:17,459 INFO L225 Difference]: With dead ends: 131 [2021-10-13 00:34:17,459 INFO L226 Difference]: Without dead ends: 79 [2021-10-13 00:34:17,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-13 00:34:17,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-13 00:34:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 78 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions. [2021-10-13 00:34:17,506 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 5 [2021-10-13 00:34:17,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:17,506 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 121 transitions. [2021-10-13 00:34:17,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2021-10-13 00:34:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:34:17,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:17,508 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:17,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:34:17,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:17,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:17,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1485309586, now seen corresponding path program 1 times [2021-10-13 00:34:17,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:17,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417514618] [2021-10-13 00:34:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:17,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:17,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:17,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417514618] [2021-10-13 00:34:17,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417514618] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:17,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:17,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:17,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730053136] [2021-10-13 00:34:17,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:17,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:17,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:17,567 INFO L87 Difference]: Start difference. First operand 79 states and 121 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:17,629 INFO L93 Difference]: Finished difference Result 156 states and 246 transitions. [2021-10-13 00:34:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-13 00:34:17,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:17,632 INFO L225 Difference]: With dead ends: 156 [2021-10-13 00:34:17,632 INFO L226 Difference]: Without dead ends: 116 [2021-10-13 00:34:17,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-13 00:34:17,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-13 00:34:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5217391304347827) internal successors, (175), 115 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) [2021-10-13 00:34:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2021-10-13 00:34:17,653 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 10 [2021-10-13 00:34:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:17,654 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2021-10-13 00:34:17,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2021-10-13 00:34:17,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:34:17,656 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:17,656 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:17,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:34:17,657 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:17,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:17,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1152886494, now seen corresponding path program 1 times [2021-10-13 00:34:17,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:17,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341743583] [2021-10-13 00:34:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:17,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:34:17,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:17,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341743583] [2021-10-13 00:34:17,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341743583] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:17,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:17,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:17,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564567489] [2021-10-13 00:34:17,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:17,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:17,753 INFO L87 Difference]: Start difference. First operand 116 states and 175 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:17,875 INFO L93 Difference]: Finished difference Result 230 states and 355 transitions. [2021-10-13 00:34:17,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:17,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 16 [2021-10-13 00:34:17,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:17,884 INFO L225 Difference]: With dead ends: 230 [2021-10-13 00:34:17,884 INFO L226 Difference]: Without dead ends: 153 [2021-10-13 00:34:17,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-13 00:34:17,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-10-13 00:34:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.513157894736842) internal successors, (230), 152 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 230 transitions. [2021-10-13 00:34:17,916 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 230 transitions. Word has length 16 [2021-10-13 00:34:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:17,917 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 230 transitions. [2021-10-13 00:34:17,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 230 transitions. [2021-10-13 00:34:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 00:34:17,919 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:17,919 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:17,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:34:17,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:17,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:17,921 INFO L82 PathProgramCache]: Analyzing trace with hash -77104047, now seen corresponding path program 1 times [2021-10-13 00:34:17,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:17,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171875804] [2021-10-13 00:34:17,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:17,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:34:18,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:18,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171875804] [2021-10-13 00:34:18,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171875804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:18,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:18,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:18,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647372433] [2021-10-13 00:34:18,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:18,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:18,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:18,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,031 INFO L87 Difference]: Start difference. First operand 153 states and 230 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:18,135 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2021-10-13 00:34:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 31 [2021-10-13 00:34:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:18,138 INFO L225 Difference]: With dead ends: 321 [2021-10-13 00:34:18,138 INFO L226 Difference]: Without dead ends: 170 [2021-10-13 00:34:18,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-10-13 00:34:18,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2021-10-13 00:34:18,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 1.473053892215569) internal successors, (246), 167 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 246 transitions. [2021-10-13 00:34:18,200 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 246 transitions. Word has length 31 [2021-10-13 00:34:18,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:18,201 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 246 transitions. [2021-10-13 00:34:18,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 246 transitions. [2021-10-13 00:34:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 00:34:18,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:18,204 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:18,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:34:18,205 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:18,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:18,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1611839695, now seen corresponding path program 1 times [2021-10-13 00:34:18,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:18,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410026181] [2021-10-13 00:34:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:18,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 00:34:18,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:18,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410026181] [2021-10-13 00:34:18,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410026181] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:18,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:18,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:18,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206763690] [2021-10-13 00:34:18,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:18,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,294 INFO L87 Difference]: Start difference. First operand 168 states and 246 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:18,438 INFO L93 Difference]: Finished difference Result 378 states and 567 transitions. [2021-10-13 00:34:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:18,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 31 [2021-10-13 00:34:18,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:18,442 INFO L225 Difference]: With dead ends: 378 [2021-10-13 00:34:18,443 INFO L226 Difference]: Without dead ends: 212 [2021-10-13 00:34:18,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-13 00:34:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2021-10-13 00:34:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.383495145631068) internal successors, (285), 206 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) [2021-10-13 00:34:18,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2021-10-13 00:34:18,495 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 31 [2021-10-13 00:34:18,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:18,496 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2021-10-13 00:34:18,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,496 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2021-10-13 00:34:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 00:34:18,503 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:18,504 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:18,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:34:18,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:18,512 INFO L82 PathProgramCache]: Analyzing trace with hash -359756882, now seen corresponding path program 1 times [2021-10-13 00:34:18,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:18,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299551215] [2021-10-13 00:34:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:18,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 00:34:18,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:18,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299551215] [2021-10-13 00:34:18,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299551215] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:18,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:18,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:18,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640485483] [2021-10-13 00:34:18,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:18,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:18,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:18,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,631 INFO L87 Difference]: Start difference. First operand 207 states and 285 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:18,691 INFO L93 Difference]: Finished difference Result 415 states and 578 transitions. [2021-10-13 00:34:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:18,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-13 00:34:18,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:18,694 INFO L225 Difference]: With dead ends: 415 [2021-10-13 00:34:18,695 INFO L226 Difference]: Without dead ends: 265 [2021-10-13 00:34:18,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-13 00:34:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2021-10-13 00:34:18,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.3931297709923665) internal successors, (365), 262 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2021-10-13 00:34:18,740 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 45 [2021-10-13 00:34:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:18,757 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2021-10-13 00:34:18,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2021-10-13 00:34:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 00:34:18,761 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:18,761 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:18,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:34:18,761 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:18,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1572307813, now seen corresponding path program 1 times [2021-10-13 00:34:18,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:18,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252099760] [2021-10-13 00:34:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:18,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 00:34:18,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:18,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252099760] [2021-10-13 00:34:18,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252099760] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:18,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:18,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:18,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934568659] [2021-10-13 00:34:18,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:18,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,815 INFO L87 Difference]: Start difference. First operand 263 states and 365 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:18,934 INFO L93 Difference]: Finished difference Result 522 states and 739 transitions. [2021-10-13 00:34:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:18,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 48 [2021-10-13 00:34:18,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:18,937 INFO L225 Difference]: With dead ends: 522 [2021-10-13 00:34:18,937 INFO L226 Difference]: Without dead ends: 183 [2021-10-13 00:34:18,939 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-13 00:34:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2021-10-13 00:34:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 179 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 233 transitions. [2021-10-13 00:34:18,966 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 233 transitions. Word has length 48 [2021-10-13 00:34:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:18,967 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 233 transitions. [2021-10-13 00:34:18,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 233 transitions. [2021-10-13 00:34:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-13 00:34:18,980 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:18,980 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:18,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:34:18,981 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:34:18,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:18,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1927293386, now seen corresponding path program 1 times [2021-10-13 00:34:18,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:18,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844396271] [2021-10-13 00:34:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:18,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-13 00:34:19,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:19,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844396271] [2021-10-13 00:34:19,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844396271] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:19,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:19,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:19,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549147197] [2021-10-13 00:34:19,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:19,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:19,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:19,081 INFO L87 Difference]: Start difference. First operand 180 states and 233 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:19,096 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2021-10-13 00:34:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 76 [2021-10-13 00:34:19,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:19,100 INFO L225 Difference]: With dead ends: 273 [2021-10-13 00:34:19,100 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:34:19,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:19,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:34:19,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:34:19,102 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) [2021-10-13 00:34:19,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:34:19,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-10-13 00:34:19,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:19,103 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:34:19,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:19,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:34:19,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:34:19,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:34:19,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:34:19,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:34:19,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:34:19,566 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:34:19,566 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:34:19,570 INFO L860 garLoopResultBuilder]: At program point L218(lines 10 219) the Hoare annotation is: true [2021-10-13 00:34:19,570 INFO L857 garLoopResultBuilder]: For program point L70(lines 70 187) no Hoare annotation was computed. [2021-10-13 00:34:19,571 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 191) no Hoare annotation was computed. [2021-10-13 00:34:19,571 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 76 185) no Hoare annotation was computed. [2021-10-13 00:34:19,571 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 195) no Hoare annotation was computed. [2021-10-13 00:34:19,571 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 76 185) no Hoare annotation was computed. [2021-10-13 00:34:19,572 INFO L853 garLoopResultBuilder]: At program point L178(lines 24 213) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~blastFlag~0 3))) (or (and .cse0 (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0))) (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (and .cse0 (<= 8672 ULTIMATE.start_main_~s__state~0)) (= ULTIMATE.start_main_~blastFlag~0 0))) [2021-10-13 00:34:19,572 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 199) no Hoare annotation was computed. [2021-10-13 00:34:19,572 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 141) no Hoare annotation was computed. [2021-10-13 00:34:19,572 INFO L853 garLoopResultBuilder]: At program point L71(lines 70 187) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)))) [2021-10-13 00:34:19,572 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 203) no Hoare annotation was computed. [2021-10-13 00:34:19,573 INFO L853 garLoopResultBuilder]: At program point L63(lines 62 191) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,573 INFO L853 garLoopResultBuilder]: At program point L55(lines 54 195) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,573 INFO L853 garLoopResultBuilder]: At program point L47(lines 46 199) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,573 INFO L857 garLoopResultBuilder]: For program point L80-1(lines 80 82) no Hoare annotation was computed. [2021-10-13 00:34:19,573 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 76 185) no Hoare annotation was computed. [2021-10-13 00:34:19,574 INFO L853 garLoopResultBuilder]: At program point L39(lines 38 203) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~s__state~0 8512))) (or (and (= ULTIMATE.start_main_~blastFlag~0 1) .cse0) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)))) [2021-10-13 00:34:19,574 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 206) no Hoare annotation was computed. [2021-10-13 00:34:19,574 INFO L853 garLoopResultBuilder]: At program point L122(lines 115 124) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,574 INFO L853 garLoopResultBuilder]: At program point L114(lines 107 125) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,574 INFO L857 garLoopResultBuilder]: For program point L164-1(lines 164 166) no Hoare annotation was computed. [2021-10-13 00:34:19,575 INFO L853 garLoopResultBuilder]: At program point L32(lines 31 206) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,575 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:34:19,575 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-10-13 00:34:19,575 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 125) no Hoare annotation was computed. [2021-10-13 00:34:19,575 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 185) no Hoare annotation was computed. [2021-10-13 00:34:19,576 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 189) no Hoare annotation was computed. [2021-10-13 00:34:19,576 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:34:19,576 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 193) no Hoare annotation was computed. [2021-10-13 00:34:19,576 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-13 00:34:19,576 INFO L860 garLoopResultBuilder]: At program point L215(lines 10 219) the Hoare annotation is: true [2021-10-13 00:34:19,576 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 120) no Hoare annotation was computed. [2021-10-13 00:34:19,576 INFO L857 garLoopResultBuilder]: For program point L50(lines 50 197) no Hoare annotation was computed. [2021-10-13 00:34:19,577 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 176) no Hoare annotation was computed. [2021-10-13 00:34:19,577 INFO L857 garLoopResultBuilder]: For program point L108(lines 108 112) no Hoare annotation was computed. [2021-10-13 00:34:19,577 INFO L853 garLoopResultBuilder]: At program point L75(lines 74 185) the Hoare annotation is: (and (<= ULTIMATE.start_main_~blastFlag~0 3) (<= 8672 ULTIMATE.start_main_~s__state~0)) [2021-10-13 00:34:19,577 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 201) no Hoare annotation was computed. [2021-10-13 00:34:19,578 INFO L853 garLoopResultBuilder]: At program point L67(lines 66 189) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)))) [2021-10-13 00:34:19,578 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 205) no Hoare annotation was computed. [2021-10-13 00:34:19,578 INFO L853 garLoopResultBuilder]: At program point L59(lines 58 193) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,578 INFO L853 garLoopResultBuilder]: At program point L51(lines 50 197) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,578 INFO L853 garLoopResultBuilder]: At program point L175(lines 10 219) the Hoare annotation is: false [2021-10-13 00:34:19,578 INFO L853 garLoopResultBuilder]: At program point L43(lines 42 201) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,579 INFO L853 garLoopResultBuilder]: At program point L35(lines 34 205) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-13 00:34:19,583 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:34:19,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:34:19 BoogieIcfgContainer [2021-10-13 00:34:19,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:34:19,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:34:19,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:34:19,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:34:19,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:16" (3/4) ... [2021-10-13 00:34:19,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:34:19,630 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:34:19,631 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:34:19,631 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:34:19,632 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:34:19,680 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:34:19,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:34:19,682 INFO L168 Benchmark]: Toolchain (without parser) took 3614.83 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 88.6 MB in the beginning and 139.4 MB in the end (delta: -50.7 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,682 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 77.6 MB. Free memory was 38.3 MB in the beginning and 38.3 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:34:19,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.58 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 96.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.64 ms. Allocated memory is still 121.6 MB. Free memory was 96.9 MB in the beginning and 94.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,684 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 94.1 MB in the end (delta: 684.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,685 INFO L168 Benchmark]: RCFGBuilder took 490.65 ms. Allocated memory is still 121.6 MB. Free memory was 94.1 MB in the beginning and 81.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,685 INFO L168 Benchmark]: TraceAbstraction took 2688.92 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 80.8 MB in the beginning and 142.5 MB in the end (delta: -61.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,686 INFO L168 Benchmark]: Witness Printer took 66.63 ms. Allocated memory is still 176.2 MB. Free memory was 142.5 MB in the beginning and 139.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:19,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 77.6 MB. Free memory was 38.3 MB in the beginning and 38.3 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.58 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 96.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.64 ms. Allocated memory is still 121.6 MB. Free memory was 96.9 MB in the beginning and 94.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 94.1 MB in the end (delta: 684.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 490.65 ms. Allocated memory is still 121.6 MB. Free memory was 94.1 MB in the beginning and 81.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2688.92 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 80.8 MB in the beginning and 142.5 MB in the end (delta: -61.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Witness Printer took 66.63 ms. Allocated memory is still 176.2 MB. Free memory was 142.5 MB in the beginning and 139.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 217]: 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, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2583.0ms, OverallIterations: 8, TraceHistogramMax: 6, EmptinessCheckTime: 39.7ms, AutomataDifference: 837.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 457.3ms, InitialAbstractionConstructionTime: 24.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 613 SDtfs, 246 SDslu, 321 SDs, 0 SdLazy, 239 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 329.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=6, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 262.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 226 HoareAnnotationTreeSize, 18 FomulaSimplifications, 203 FormulaSimplificationTreeSizeReduction, 114.2ms HoareSimplificationTime, 18 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 330.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 26.8ms SsaConstructionTime, 178.0ms SatisfiabilityAnalysisTime, 459.7ms InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 218/218 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: 66]: Loop Invariant Derived loop invariant: (((8640 <= s__state && blastFlag == 1) || (8640 <= s__state && blastFlag == 0)) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0))) || (8640 <= s__state && blastFlag == 2) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((8640 <= s__state && blastFlag == 1) || (8640 <= s__state && blastFlag == 0)) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0))) || (8640 <= s__state && blastFlag == 2) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) || blastFlag == 1) || blastFlag == 2) || (blastFlag <= 3 && 8672 <= s__state)) || blastFlag == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((blastFlag == 1 && s__state == 8512) || (s__state == 8512 && blastFlag == 2)) || (s__state == 8512 && blastFlag == 0) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:34:19,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4b1e03-4e17-4122-ac2e-c61f51fd3967/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...