./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/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_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg --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 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:46:35,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:46:35,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:46:35,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:46:35,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:46:35,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:46:35,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:46:35,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:46:35,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:46:35,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:46:35,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:46:35,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:46:35,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:46:35,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:46:35,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:46:35,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:46:35,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:46:35,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:46:35,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:46:35,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:46:35,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:46:35,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:46:35,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:46:35,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:46:35,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:46:35,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:46:35,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:46:35,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:46:35,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:46:35,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:46:35,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:46:35,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:46:35,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:46:35,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:46:35,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:46:35,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:46:35,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:46:35,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:46:35,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:46:35,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:46:35,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:46:35,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:46:35,266 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:46:35,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:46:35,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:46:35,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:46:35,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:46:35,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:46:35,277 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:46:35,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:46:35,277 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:46:35,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:46:35,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:46:35,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:46:35,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:46:35,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:46:35,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:46:35,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:46:35,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:46:35,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:46:35,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:46:35,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:46:35,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:46:35,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:46:35,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:46:35,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:46:35,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:46:35,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:46:35,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:46:35,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:46:35,283 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:46:35,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:46:35,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:46:35,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:46:35,286 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_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f [2021-10-28 08:46:35,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:46:35,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:46:35,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:46:35,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:46:35,593 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:46:35,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-10-28 08:46:35,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/data/042462401/f06c3e87333a489a8060d6ac77e9dd90/FLAG9775cb5bf [2021-10-28 08:46:36,139 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:46:36,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-10-28 08:46:36,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/data/042462401/f06c3e87333a489a8060d6ac77e9dd90/FLAG9775cb5bf [2021-10-28 08:46:36,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/data/042462401/f06c3e87333a489a8060d6ac77e9dd90 [2021-10-28 08:46:36,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:46:36,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:46:36,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:36,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:46:36,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:46:36,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a89380d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36, skipping insertion in model container [2021-10-28 08:46:36,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:46:36,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:46:36,765 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_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2021-10-28 08:46:36,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:36,778 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:46:36,800 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_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2021-10-28 08:46:36,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:36,813 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:46:36,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36 WrapperNode [2021-10-28 08:46:36,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:36,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:46:36,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:46:36,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:46:36,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:46:36,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:46:36,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:46:36,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:46:36,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:46:36,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:46:36,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:46:36,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:46:36,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (1/1) ... [2021-10-28 08:46:36,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:46:36,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:36,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:46:36,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:46:36,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:46:36,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:46:36,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:46:36,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:46:37,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:46:37,265 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 08:46:37,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:37 BoogieIcfgContainer [2021-10-28 08:46:37,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:46:37,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:46:37,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:46:37,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:46:37,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:46:36" (1/3) ... [2021-10-28 08:46:37,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2529f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:46:37, skipping insertion in model container [2021-10-28 08:46:37,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:36" (2/3) ... [2021-10-28 08:46:37,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2529f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:46:37, skipping insertion in model container [2021-10-28 08:46:37,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:37" (3/3) ... [2021-10-28 08:46:37,275 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2021-10-28 08:46:37,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:46:37,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:46:37,332 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:46:37,339 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:46:37,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:46:37,357 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) [2021-10-28 08:46:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 08:46:37,363 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:37,363 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 08:46:37,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:37,370 INFO L85 PathProgramCache]: Analyzing trace with hash 28699930, now seen corresponding path program 1 times [2021-10-28 08:46:37,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:37,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685014502] [2021-10-28 08:46:37,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:37,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:37,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:37,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:37,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685014502] [2021-10-28 08:46:37,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685014502] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:37,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:37,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:37,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397729413] [2021-10-28 08:46:37,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:37,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:37,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:37,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:37,632 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) [2021-10-28 08:46:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:37,710 INFO L93 Difference]: Finished difference Result 131 states and 218 transitions. [2021-10-28 08:46:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:37,712 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 [2021-10-28 08:46:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:37,722 INFO L225 Difference]: With dead ends: 131 [2021-10-28 08:46:37,723 INFO L226 Difference]: Without dead ends: 79 [2021-10-28 08:46:37,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-28 08:46:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-28 08:46:37,767 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) [2021-10-28 08:46:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions. [2021-10-28 08:46:37,771 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 5 [2021-10-28 08:46:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:37,771 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 121 transitions. [2021-10-28 08:46:37,772 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) [2021-10-28 08:46:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2021-10-28 08:46:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:46:37,773 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:37,773 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:37,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:46:37,774 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:37,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:37,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1485309586, now seen corresponding path program 1 times [2021-10-28 08:46:37,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:37,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248904701] [2021-10-28 08:46:37,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:37,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:37,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:37,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248904701] [2021-10-28 08:46:37,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248904701] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:37,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:37,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:37,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215250666] [2021-10-28 08:46:37,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:37,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:37,870 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) [2021-10-28 08:46:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:37,980 INFO L93 Difference]: Finished difference Result 156 states and 246 transitions. [2021-10-28 08:46:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:37,980 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 [2021-10-28 08:46:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:37,982 INFO L225 Difference]: With dead ends: 156 [2021-10-28 08:46:37,983 INFO L226 Difference]: Without dead ends: 116 [2021-10-28 08:46:37,984 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:37,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-28 08:46:37,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-28 08:46:37,998 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) [2021-10-28 08:46:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2021-10-28 08:46:38,001 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 10 [2021-10-28 08:46:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:38,001 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2021-10-28 08:46:38,002 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) [2021-10-28 08:46:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2021-10-28 08:46:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:46:38,003 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:38,003 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:38,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:46:38,004 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1152886494, now seen corresponding path program 1 times [2021-10-28 08:46:38,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:38,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279670960] [2021-10-28 08:46:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:38,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 08:46:38,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:38,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279670960] [2021-10-28 08:46:38,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279670960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:38,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:38,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:38,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968645081] [2021-10-28 08:46:38,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:38,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:38,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,076 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) [2021-10-28 08:46:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:38,166 INFO L93 Difference]: Finished difference Result 230 states and 355 transitions. [2021-10-28 08:46:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:38,166 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 [2021-10-28 08:46:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:38,169 INFO L225 Difference]: With dead ends: 230 [2021-10-28 08:46:38,169 INFO L226 Difference]: Without dead ends: 153 [2021-10-28 08:46:38,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-28 08:46:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-10-28 08:46:38,201 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) [2021-10-28 08:46:38,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 230 transitions. [2021-10-28 08:46:38,203 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 230 transitions. Word has length 16 [2021-10-28 08:46:38,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:38,204 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 230 transitions. [2021-10-28 08:46:38,204 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) [2021-10-28 08:46:38,204 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 230 transitions. [2021-10-28 08:46:38,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 08:46:38,206 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:38,206 INFO L513 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] [2021-10-28 08:46:38,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:46:38,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:38,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:38,207 INFO L85 PathProgramCache]: Analyzing trace with hash -77104047, now seen corresponding path program 1 times [2021-10-28 08:46:38,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:38,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561759804] [2021-10-28 08:46:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:38,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 08:46:38,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:38,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561759804] [2021-10-28 08:46:38,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561759804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:38,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:38,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:38,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120635127] [2021-10-28 08:46:38,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:38,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:38,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:38,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,323 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) [2021-10-28 08:46:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:38,424 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2021-10-28 08:46:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:38,425 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 [2021-10-28 08:46:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:38,427 INFO L225 Difference]: With dead ends: 321 [2021-10-28 08:46:38,428 INFO L226 Difference]: Without dead ends: 170 [2021-10-28 08:46:38,429 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-10-28 08:46:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2021-10-28 08:46:38,446 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) [2021-10-28 08:46:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 246 transitions. [2021-10-28 08:46:38,448 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 246 transitions. Word has length 31 [2021-10-28 08:46:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:38,449 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 246 transitions. [2021-10-28 08:46:38,449 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) [2021-10-28 08:46:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 246 transitions. [2021-10-28 08:46:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 08:46:38,451 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:38,451 INFO L513 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] [2021-10-28 08:46:38,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:46:38,452 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1611839695, now seen corresponding path program 1 times [2021-10-28 08:46:38,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:38,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497520520] [2021-10-28 08:46:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:38,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 08:46:38,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:38,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497520520] [2021-10-28 08:46:38,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497520520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:38,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:38,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:38,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432180497] [2021-10-28 08:46:38,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:38,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:38,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:38,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,508 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) [2021-10-28 08:46:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:38,612 INFO L93 Difference]: Finished difference Result 378 states and 567 transitions. [2021-10-28 08:46:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:38,612 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 [2021-10-28 08:46:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:38,615 INFO L225 Difference]: With dead ends: 378 [2021-10-28 08:46:38,615 INFO L226 Difference]: Without dead ends: 212 [2021-10-28 08:46:38,616 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-28 08:46:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2021-10-28 08:46:38,634 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) [2021-10-28 08:46:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2021-10-28 08:46:38,636 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 31 [2021-10-28 08:46:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:38,637 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2021-10-28 08:46:38,637 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) [2021-10-28 08:46:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2021-10-28 08:46:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 08:46:38,640 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:38,640 INFO L513 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] [2021-10-28 08:46:38,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:46:38,640 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:38,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:38,641 INFO L85 PathProgramCache]: Analyzing trace with hash -359756882, now seen corresponding path program 1 times [2021-10-28 08:46:38,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:38,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031865935] [2021-10-28 08:46:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:38,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 08:46:38,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:38,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031865935] [2021-10-28 08:46:38,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031865935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:38,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:38,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:38,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53063179] [2021-10-28 08:46:38,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:38,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:38,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:38,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,698 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) [2021-10-28 08:46:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:38,742 INFO L93 Difference]: Finished difference Result 415 states and 578 transitions. [2021-10-28 08:46:38,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:38,743 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 [2021-10-28 08:46:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:38,745 INFO L225 Difference]: With dead ends: 415 [2021-10-28 08:46:38,746 INFO L226 Difference]: Without dead ends: 265 [2021-10-28 08:46:38,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-28 08:46:38,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2021-10-28 08:46:38,765 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) [2021-10-28 08:46:38,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2021-10-28 08:46:38,767 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 45 [2021-10-28 08:46:38,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:38,768 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2021-10-28 08:46:38,768 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) [2021-10-28 08:46:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2021-10-28 08:46:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 08:46:38,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:38,771 INFO L513 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] [2021-10-28 08:46:38,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:46:38,772 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:38,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1572307813, now seen corresponding path program 1 times [2021-10-28 08:46:38,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:38,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159801523] [2021-10-28 08:46:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:38,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 08:46:38,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:38,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159801523] [2021-10-28 08:46:38,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159801523] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:38,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:38,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:38,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556097343] [2021-10-28 08:46:38,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:38,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:38,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:38,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,825 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) [2021-10-28 08:46:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:38,919 INFO L93 Difference]: Finished difference Result 522 states and 739 transitions. [2021-10-28 08:46:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:38,920 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 [2021-10-28 08:46:38,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:38,922 INFO L225 Difference]: With dead ends: 522 [2021-10-28 08:46:38,923 INFO L226 Difference]: Without dead ends: 183 [2021-10-28 08:46:38,924 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:38,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-28 08:46:38,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2021-10-28 08:46:38,933 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) [2021-10-28 08:46:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 233 transitions. [2021-10-28 08:46:38,935 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 233 transitions. Word has length 48 [2021-10-28 08:46:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:38,936 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 233 transitions. [2021-10-28 08:46:38,936 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) [2021-10-28 08:46:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 233 transitions. [2021-10-28 08:46:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-28 08:46:38,940 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:38,941 INFO L513 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] [2021-10-28 08:46:38,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:46:38,941 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:46:38,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:38,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1927293386, now seen corresponding path program 1 times [2021-10-28 08:46:38,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:38,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565336286] [2021-10-28 08:46:38,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:38,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-28 08:46:39,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:39,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565336286] [2021-10-28 08:46:39,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565336286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:39,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:39,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:39,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636189350] [2021-10-28 08:46:39,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:39,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:39,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:39,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:39,050 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) [2021-10-28 08:46:39,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:39,067 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2021-10-28 08:46:39,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:39,069 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 [2021-10-28 08:46:39,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:39,071 INFO L225 Difference]: With dead ends: 273 [2021-10-28 08:46:39,072 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:46:39,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:46:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:46:39,073 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) [2021-10-28 08:46:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:46:39,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-10-28 08:46:39,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:39,074 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:46:39,074 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) [2021-10-28 08:46:39,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:46:39,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:46:39,079 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:46:39,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:46:39,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:46:39,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:46:39,543 INFO L860 garLoopResultBuilder]: At program point L225(lines 20 229) the Hoare annotation is: true [2021-10-28 08:46:39,544 INFO L857 garLoopResultBuilder]: For program point L126(lines 126 130) no Hoare annotation was computed. [2021-10-28 08:46:39,544 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 207) no Hoare annotation was computed. [2021-10-28 08:46:39,544 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 186) no Hoare annotation was computed. [2021-10-28 08:46:39,544 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2021-10-28 08:46:39,544 INFO L853 garLoopResultBuilder]: At program point L85(lines 84 195) the Hoare annotation is: (and (<= ULTIMATE.start_main_~blastFlag~0 3) (<= 8672 ULTIMATE.start_main_~s__state~0)) [2021-10-28 08:46:39,545 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 211) no Hoare annotation was computed. [2021-10-28 08:46:39,545 INFO L853 garLoopResultBuilder]: At program point L77(lines 76 199) 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)))) [2021-10-28 08:46:39,545 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 215) no Hoare annotation was computed. [2021-10-28 08:46:39,545 INFO L853 garLoopResultBuilder]: At program point L69(lines 68 203) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,545 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:46:39,546 INFO L853 garLoopResultBuilder]: At program point L61(lines 60 207) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,551 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:46:39,551 INFO L853 garLoopResultBuilder]: At program point L185(lines 20 229) the Hoare annotation is: false [2021-10-28 08:46:39,551 INFO L853 garLoopResultBuilder]: At program point L53(lines 52 211) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,553 INFO L853 garLoopResultBuilder]: At program point L45(lines 44 215) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,553 INFO L860 garLoopResultBuilder]: At program point L228(lines 20 229) the Hoare annotation is: true [2021-10-28 08:46:39,553 INFO L857 garLoopResultBuilder]: For program point L80(lines 80 197) no Hoare annotation was computed. [2021-10-28 08:46:39,553 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 201) no Hoare annotation was computed. [2021-10-28 08:46:39,554 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 86 195) no Hoare annotation was computed. [2021-10-28 08:46:39,554 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 205) no Hoare annotation was computed. [2021-10-28 08:46:39,554 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 86 195) no Hoare annotation was computed. [2021-10-28 08:46:39,554 INFO L853 garLoopResultBuilder]: At program point L188(lines 34 223) 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))) [2021-10-28 08:46:39,555 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 209) no Hoare annotation was computed. [2021-10-28 08:46:39,555 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 151) no Hoare annotation was computed. [2021-10-28 08:46:39,555 INFO L853 garLoopResultBuilder]: At program point L81(lines 80 197) 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)))) [2021-10-28 08:46:39,559 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 213) no Hoare annotation was computed. [2021-10-28 08:46:39,559 INFO L853 garLoopResultBuilder]: At program point L73(lines 72 201) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,561 INFO L853 garLoopResultBuilder]: At program point L65(lines 64 205) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,561 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:46:39,562 INFO L853 garLoopResultBuilder]: At program point L57(lines 56 209) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,562 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 90 92) no Hoare annotation was computed. [2021-10-28 08:46:39,562 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2021-10-28 08:46:39,562 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 86 195) no Hoare annotation was computed. [2021-10-28 08:46:39,563 INFO L853 garLoopResultBuilder]: At program point L49(lines 48 213) 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)))) [2021-10-28 08:46:39,563 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 216) no Hoare annotation was computed. [2021-10-28 08:46:39,564 INFO L853 garLoopResultBuilder]: At program point L132(lines 125 134) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,565 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:46:39,565 INFO L853 garLoopResultBuilder]: At program point L124(lines 117 135) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,566 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 174 176) no Hoare annotation was computed. [2021-10-28 08:46:39,566 INFO L853 garLoopResultBuilder]: At program point L42(lines 41 216) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2021-10-28 08:46:39,566 INFO L857 garLoopResultBuilder]: For program point L117(lines 117 135) no Hoare annotation was computed. [2021-10-28 08:46:39,567 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 195) no Hoare annotation was computed. [2021-10-28 08:46:39,567 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 199) no Hoare annotation was computed. [2021-10-28 08:46:39,567 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 203) no Hoare annotation was computed. [2021-10-28 08:46:39,567 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-28 08:46:39,571 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:39,573 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:46:39,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:46:39 BoogieIcfgContainer [2021-10-28 08:46:39,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:46:39,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:46:39,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:46:39,617 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:46:39,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:37" (3/4) ... [2021-10-28 08:46:39,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:46:39,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 08:46:39,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:46:39,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:46:39,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:46:39,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:46:39,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:46:39,699 INFO L168 Benchmark]: Toolchain (without parser) took 3165.87 ms. Allocated memory is still 121.6 MB. Free memory was 89.4 MB in the beginning and 68.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,699 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:46:39,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.01 ms. Allocated memory is still 121.6 MB. Free memory was 89.4 MB in the beginning and 97.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.50 ms. Allocated memory is still 121.6 MB. Free memory was 97.7 MB in the beginning and 95.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,701 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 94.8 MB in the end (delta: 730.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,701 INFO L168 Benchmark]: RCFGBuilder took 387.58 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 81.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,702 INFO L168 Benchmark]: TraceAbstraction took 2347.10 ms. Allocated memory is still 121.6 MB. Free memory was 81.5 MB in the beginning and 71.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,702 INFO L168 Benchmark]: Witness Printer took 80.65 ms. Allocated memory is still 121.6 MB. Free memory was 71.5 MB in the beginning and 68.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:46:39,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.01 ms. Allocated memory is still 121.6 MB. Free memory was 89.4 MB in the beginning and 97.7 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 37.50 ms. Allocated memory is still 121.6 MB. Free memory was 97.7 MB in the beginning and 95.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 121.6 MB. Free memory was 95.5 MB in the beginning and 94.8 MB in the end (delta: 730.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 387.58 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 81.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2347.10 ms. Allocated memory is still 121.6 MB. Free memory was 81.5 MB in the beginning and 71.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 80.65 ms. Allocated memory is still 121.6 MB. Free memory was 71.5 MB in the beginning and 68.2 MB in the end (delta: 3.3 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 227]: 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: 2.2s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 613 SDtfs, 246 SDslu, 321 SDs, 0 SdLazy, 239 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 226 HoareAnnotationTreeSize, 18 FomulaSimplifications, 203 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: 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: 41]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 76]: 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: 125]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((blastFlag == 1 && s__state == 8512) || (s__state == 8512 && blastFlag == 2)) || (s__state == 8512 && blastFlag == 0) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 34]: 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: 64]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:46:39,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ed8ca-70ac-417f-8f6f-87c329d18a60/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...