./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer --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 0f30e5c8dd22ab2b73732680ca0f663e4efc2b97 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:16:29,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:16:29,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:16:29,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:16:29,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:16:29,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:16:29,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:16:29,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:16:29,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:16:29,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:16:29,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:16:29,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:16:29,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:16:29,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:16:29,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:16:29,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:16:29,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:16:29,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:16:29,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:16:29,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:16:29,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:16:29,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:16:29,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:16:29,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:16:29,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:16:29,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:16:29,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:16:29,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:16:29,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:16:29,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:16:29,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:16:29,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:16:29,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:16:29,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:16:29,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:16:29,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:16:29,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:16:29,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:16:29,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:16:29,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:16:29,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:16:29,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:16:29,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:16:29,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:16:29,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:16:29,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:16:29,194 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:16:29,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:16:29,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:16:29,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:16:29,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:16:29,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:16:29,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:16:29,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:16:29,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:16:29,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:16:29,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:16:29,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:16:29,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:16:29,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:16:29,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:16:29,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:16:29,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:16:29,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:16:29,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:16:29,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:16:29,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:16:29,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:16:29,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:16:29,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:16:29,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:16:29,200 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-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f30e5c8dd22ab2b73732680ca0f663e4efc2b97 [2020-11-30 01:16:29,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:16:29,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:16:29,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:16:29,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:16:29,524 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:16:29,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2020-11-30 01:16:29,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/data/df8927b88/f2334e8cca324a39897e2742a7b72ea0/FLAGfe813911c [2020-11-30 01:16:30,297 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:16:30,297 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2020-11-30 01:16:30,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/data/df8927b88/f2334e8cca324a39897e2742a7b72ea0/FLAGfe813911c [2020-11-30 01:16:30,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/data/df8927b88/f2334e8cca324a39897e2742a7b72ea0 [2020-11-30 01:16:30,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:16:30,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:16:30,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:30,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:16:30,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:16:30,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:30" (1/1) ... [2020-11-30 01:16:30,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7196d6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:30, skipping insertion in model container [2020-11-30 01:16:30,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:30" (1/1) ... [2020-11-30 01:16:30,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:16:30,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:16:31,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:31,081 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:16:31,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:31,201 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:16:31,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31 WrapperNode [2020-11-30 01:16:31,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:31,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:31,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:16:31,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:16:31,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:31,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:16:31,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:16:31,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:16:31,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... [2020-11-30 01:16:31,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:16:31,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:16:31,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:16:31,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:16:31,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:16:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:16:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 01:16:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:16:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:16:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 01:16:31,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 01:16:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 01:16:31,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 01:16:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-30 01:16:31,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-30 01:16:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-30 01:16:31,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-30 01:16:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:16:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 01:16:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:16:31,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:16:31,355 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 01:16:32,026 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:16:32,026 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 01:16:32,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:32 BoogieIcfgContainer [2020-11-30 01:16:32,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:16:32,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:16:32,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:16:32,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:16:32,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:16:30" (1/3) ... [2020-11-30 01:16:32,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53686e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:16:32, skipping insertion in model container [2020-11-30 01:16:32,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:31" (2/3) ... [2020-11-30 01:16:32,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53686e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:16:32, skipping insertion in model container [2020-11-30 01:16:32,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:32" (3/3) ... [2020-11-30 01:16:32,042 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-11-30 01:16:32,050 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:16:32,050 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:16:32,055 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:16:32,056 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:16:32,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,087 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,087 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,088 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,088 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,088 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,089 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,089 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,092 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,092 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,092 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,093 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,095 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,095 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,096 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,103 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,103 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,103 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,103 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:16:32,111 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 01:16:32,122 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-30 01:16:32,142 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:16:32,142 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:16:32,142 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:16:32,142 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:16:32,143 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:16:32,143 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:16:32,143 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:16:32,143 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:16:32,154 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:16:32,156 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-30 01:16:32,158 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-30 01:16:32,162 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-11-30 01:16:32,243 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-11-30 01:16:32,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 01:16:32,248 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-30 01:16:32,254 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-30 01:16:34,824 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-30 01:16:35,598 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-30 01:16:36,077 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-11-30 01:16:36,077 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-11-30 01:16:36,082 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-30 01:16:36,129 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-30 01:16:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-30 01:16:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:16:36,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:36,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,141 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:36,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:36,146 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-11-30 01:16:36,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:36,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017359727] [2020-11-30 01:16:36,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:36,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017359727] [2020-11-30 01:16:36,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:36,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:16:36,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829736440] [2020-11-30 01:16:36,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:16:36,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:36,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:16:36,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:36,421 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-30 01:16:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:36,523 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-30 01:16:36,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:16:36,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 01:16:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:36,556 INFO L225 Difference]: With dead ends: 670 [2020-11-30 01:16:36,560 INFO L226 Difference]: Without dead ends: 526 [2020-11-30 01:16:36,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-30 01:16:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-30 01:16:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-30 01:16:36,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-30 01:16:36,667 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-30 01:16:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:36,669 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-30 01:16:36,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:16:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-30 01:16:36,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:16:36,683 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:36,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:16:36,685 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:36,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:36,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-11-30 01:16:36,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:36,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311584058] [2020-11-30 01:16:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:36,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311584058] [2020-11-30 01:16:36,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:36,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:16:36,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463471127] [2020-11-30 01:16:36,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:16:36,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:36,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:16:36,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:36,800 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-30 01:16:36,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:36,870 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-11-30 01:16:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:16:36,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 01:16:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:36,879 INFO L225 Difference]: With dead ends: 724 [2020-11-30 01:16:36,879 INFO L226 Difference]: Without dead ends: 412 [2020-11-30 01:16:36,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:36,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-30 01:16:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-30 01:16:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-30 01:16:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-11-30 01:16:36,930 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-11-30 01:16:36,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:36,930 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-11-30 01:16:36,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:16:36,930 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-11-30 01:16:36,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:16:36,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:36,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:36,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:16:36,937 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:36,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:36,938 INFO L82 PathProgramCache]: Analyzing trace with hash -295858392, now seen corresponding path program 1 times [2020-11-30 01:16:36,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:36,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371385633] [2020-11-30 01:16:36,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371385633] [2020-11-30 01:16:37,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:16:37,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44005555] [2020-11-30 01:16:37,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:16:37,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:16:37,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:37,035 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-11-30 01:16:37,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,048 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-11-30 01:16:37,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:16:37,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 01:16:37,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,051 INFO L225 Difference]: With dead ends: 394 [2020-11-30 01:16:37,052 INFO L226 Difference]: Without dead ends: 394 [2020-11-30 01:16:37,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:16:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-30 01:16:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-30 01:16:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-30 01:16:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-11-30 01:16:37,070 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-11-30 01:16:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,071 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-11-30 01:16:37,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:16:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-11-30 01:16:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:16:37,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:16:37,073 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-11-30 01:16:37,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905266047] [2020-11-30 01:16:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905266047] [2020-11-30 01:16:37,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:16:37,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496092699] [2020-11-30 01:16:37,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:16:37,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:16:37,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:37,134 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-11-30 01:16:37,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,162 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-11-30 01:16:37,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:16:37,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:16:37,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,166 INFO L225 Difference]: With dead ends: 538 [2020-11-30 01:16:37,166 INFO L226 Difference]: Without dead ends: 286 [2020-11-30 01:16:37,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:37,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-30 01:16:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-30 01:16:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-30 01:16:37,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-11-30 01:16:37,179 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-11-30 01:16:37,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,179 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-11-30 01:16:37,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:16:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-11-30 01:16:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:16:37,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:16:37,181 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,182 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-11-30 01:16:37,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808330976] [2020-11-30 01:16:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808330976] [2020-11-30 01:16:37,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:16:37,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826967615] [2020-11-30 01:16:37,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:16:37,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:16:37,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:37,291 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-11-30 01:16:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,349 INFO L93 Difference]: Finished difference Result 355 states and 990 transitions. [2020-11-30 01:16:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:16:37,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 01:16:37,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,353 INFO L225 Difference]: With dead ends: 355 [2020-11-30 01:16:37,353 INFO L226 Difference]: Without dead ends: 262 [2020-11-30 01:16:37,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:37,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-11-30 01:16:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-11-30 01:16:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-30 01:16:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 738 transitions. [2020-11-30 01:16:37,366 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 738 transitions. Word has length 14 [2020-11-30 01:16:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,366 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 738 transitions. [2020-11-30 01:16:37,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:16:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 738 transitions. [2020-11-30 01:16:37,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:16:37,368 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:16:37,368 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1456913458, now seen corresponding path program 1 times [2020-11-30 01:16:37,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67450883] [2020-11-30 01:16:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67450883] [2020-11-30 01:16:37,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:16:37,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583030537] [2020-11-30 01:16:37,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:16:37,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:16:37,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:37,480 INFO L87 Difference]: Start difference. First operand 262 states and 738 transitions. Second operand 5 states. [2020-11-30 01:16:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,573 INFO L93 Difference]: Finished difference Result 283 states and 734 transitions. [2020-11-30 01:16:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:16:37,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-30 01:16:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,576 INFO L225 Difference]: With dead ends: 283 [2020-11-30 01:16:37,576 INFO L226 Difference]: Without dead ends: 208 [2020-11-30 01:16:37,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:16:37,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-30 01:16:37,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-30 01:16:37,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-30 01:16:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-11-30 01:16:37,585 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 15 [2020-11-30 01:16:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,585 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-11-30 01:16:37,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:16:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-11-30 01:16:37,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:16:37,586 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:16:37,587 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-11-30 01:16:37,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889742473] [2020-11-30 01:16:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889742473] [2020-11-30 01:16:37,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:16:37,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644041447] [2020-11-30 01:16:37,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:16:37,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:16:37,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:16:37,692 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 6 states. [2020-11-30 01:16:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,771 INFO L93 Difference]: Finished difference Result 201 states and 486 transitions. [2020-11-30 01:16:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:16:37,771 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 01:16:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,773 INFO L225 Difference]: With dead ends: 201 [2020-11-30 01:16:37,773 INFO L226 Difference]: Without dead ends: 163 [2020-11-30 01:16:37,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:16:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-30 01:16:37,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-11-30 01:16:37,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 01:16:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 394 transitions. [2020-11-30 01:16:37,783 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 394 transitions. Word has length 16 [2020-11-30 01:16:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,784 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 394 transitions. [2020-11-30 01:16:37,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:16:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 394 transitions. [2020-11-30 01:16:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:16:37,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:16:37,786 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,786 INFO L82 PathProgramCache]: Analyzing trace with hash -999056211, now seen corresponding path program 1 times [2020-11-30 01:16:37,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860777647] [2020-11-30 01:16:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860777647] [2020-11-30 01:16:37,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:16:37,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541524315] [2020-11-30 01:16:37,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:16:37,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:16:37,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:37,844 INFO L87 Difference]: Start difference. First operand 163 states and 394 transitions. Second operand 4 states. [2020-11-30 01:16:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,875 INFO L93 Difference]: Finished difference Result 263 states and 604 transitions. [2020-11-30 01:16:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:16:37,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-30 01:16:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,876 INFO L225 Difference]: With dead ends: 263 [2020-11-30 01:16:37,876 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 01:16:37,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 01:16:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-11-30 01:16:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-30 01:16:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-11-30 01:16:37,882 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-11-30 01:16:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,884 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-11-30 01:16:37,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:16:37,884 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-11-30 01:16:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:16:37,885 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:16:37,885 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,886 INFO L82 PathProgramCache]: Analyzing trace with hash 833653032, now seen corresponding path program 1 times [2020-11-30 01:16:37,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065556480] [2020-11-30 01:16:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:37,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065556480] [2020-11-30 01:16:37,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:37,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:16:37,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314377959] [2020-11-30 01:16:37,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:16:37,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:37,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:16:37,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:16:37,941 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 4 states. [2020-11-30 01:16:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:37,968 INFO L93 Difference]: Finished difference Result 142 states and 293 transitions. [2020-11-30 01:16:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:16:37,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-30 01:16:37,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:37,970 INFO L225 Difference]: With dead ends: 142 [2020-11-30 01:16:37,970 INFO L226 Difference]: Without dead ends: 87 [2020-11-30 01:16:37,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:16:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-30 01:16:37,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2020-11-30 01:16:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-30 01:16:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 160 transitions. [2020-11-30 01:16:37,974 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 160 transitions. Word has length 18 [2020-11-30 01:16:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:37,974 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 160 transitions. [2020-11-30 01:16:37,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:16:37,974 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2020-11-30 01:16:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:16:37,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:37,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:37,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:16:37,975 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:37,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:37,975 INFO L82 PathProgramCache]: Analyzing trace with hash 721666079, now seen corresponding path program 2 times [2020-11-30 01:16:37,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:37,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046788119] [2020-11-30 01:16:37,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:38,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046788119] [2020-11-30 01:16:38,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:16:38,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:16:38,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237281548] [2020-11-30 01:16:38,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:16:38,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:16:38,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:16:38,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:16:38,075 INFO L87 Difference]: Start difference. First operand 86 states and 160 transitions. Second operand 7 states. [2020-11-30 01:16:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:38,128 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-11-30 01:16:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:16:38,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-30 01:16:38,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:38,129 INFO L225 Difference]: With dead ends: 81 [2020-11-30 01:16:38,129 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:16:38,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:16:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:16:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:16:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:16:38,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:16:38,130 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-30 01:16:38,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:38,130 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:16:38,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:16:38,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:16:38,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:16:38,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:16:38,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:16:38 BasicIcfg [2020-11-30 01:16:38,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:16:38,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:16:38,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:16:38,134 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:16:38,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:32" (3/4) ... [2020-11-30 01:16:38,137 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:16:38,143 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 01:16:38,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 01:16:38,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-30 01:16:38,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-11-30 01:16:38,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-11-30 01:16:38,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:16:38,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:16:38,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:16:38,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_04fd77d9-e7cb-40e5-bf4d-85ca00769969/bin/uautomizer/witness.graphml [2020-11-30 01:16:38,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:16:38,192 INFO L168 Benchmark]: Toolchain (without parser) took 7601.61 ms. Allocated memory was 79.7 MB in the beginning and 161.5 MB in the end (delta: 81.8 MB). Free memory was 44.5 MB in the beginning and 120.0 MB in the end (delta: -75.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,193 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 79.7 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:38,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.54 ms. Allocated memory was 79.7 MB in the beginning and 111.1 MB in the end (delta: 31.5 MB). Free memory was 44.3 MB in the beginning and 67.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.05 ms. Allocated memory is still 111.1 MB. Free memory was 67.4 MB in the beginning and 65.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,197 INFO L168 Benchmark]: Boogie Preprocessor took 27.02 ms. Allocated memory is still 111.1 MB. Free memory was 65.4 MB in the beginning and 63.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,197 INFO L168 Benchmark]: RCFGBuilder took 755.40 ms. Allocated memory is still 111.1 MB. Free memory was 63.8 MB in the beginning and 88.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,198 INFO L168 Benchmark]: TraceAbstraction took 6101.09 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 87.8 MB in the beginning and 122.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,199 INFO L168 Benchmark]: Witness Printer took 57.61 ms. Allocated memory is still 161.5 MB. Free memory was 122.1 MB in the beginning and 120.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:38,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 79.7 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 609.54 ms. Allocated memory was 79.7 MB in the beginning and 111.1 MB in the end (delta: 31.5 MB). Free memory was 44.3 MB in the beginning and 67.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.05 ms. Allocated memory is still 111.1 MB. Free memory was 67.4 MB in the beginning and 65.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.02 ms. Allocated memory is still 111.1 MB. Free memory was 65.4 MB in the beginning and 63.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 755.40 ms. Allocated memory is still 111.1 MB. Free memory was 63.8 MB in the beginning and 88.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6101.09 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 87.8 MB in the beginning and 122.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Witness Printer took 57.61 ms. Allocated memory is still 161.5 MB. Free memory was 122.1 MB in the beginning and 120.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1452 VarBasedMoverChecksPositive, 69 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 221 SDtfs, 240 SDslu, 330 SDs, 0 SdLazy, 162 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 5745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...