./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.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_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/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 d652d9f3fdf88a4a943ccd902b0488ac0eab24b5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:23:43,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:23:43,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:23:43,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:23:43,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:23:43,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:23:43,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:23:43,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:23:43,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:23:43,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:23:43,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:23:43,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:23:43,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:23:43,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:23:43,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:23:43,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:23:43,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:23:43,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:23:43,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:23:43,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:23:43,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:23:43,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:23:43,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:23:43,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:23:43,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:23:43,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:23:43,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:23:43,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:23:43,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:23:43,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:23:43,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:23:43,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:23:43,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:23:43,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:23:43,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:23:43,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:23:43,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:23:43,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:23:43,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:23:43,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:23:43,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:23:43,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:23:43,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:23:43,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:23:43,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:23:43,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:23:43,776 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:23:43,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:23:43,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:23:43,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:23:43,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:23:43,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:23:43,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:23:43,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:23:43,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:23:43,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:23:43,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:23:43,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:23:43,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:23:43,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:23:43,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:23:43,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:23:43,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:23:43,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:23:43,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:23:43,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:23:43,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:23:43,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:23:43,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:23:43,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:23:43,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:23:43,785 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_0110f3e1-58b7-4724-b004-0bd7a6478abe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d652d9f3fdf88a4a943ccd902b0488ac0eab24b5 [2020-11-30 01:23:44,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:23:44,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:23:44,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:23:44,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:23:44,264 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:23:44,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2020-11-30 01:23:44,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/data/77fa6b3ec/c6ee9cc077ff45118e9d90e4ed40afd1/FLAG035568e95 [2020-11-30 01:23:45,242 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:23:45,243 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2020-11-30 01:23:45,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/data/77fa6b3ec/c6ee9cc077ff45118e9d90e4ed40afd1/FLAG035568e95 [2020-11-30 01:23:45,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/data/77fa6b3ec/c6ee9cc077ff45118e9d90e4ed40afd1 [2020-11-30 01:23:45,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:23:45,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:23:45,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:23:45,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:23:45,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:23:45,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:23:45" (1/1) ... [2020-11-30 01:23:45,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419896db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:45, skipping insertion in model container [2020-11-30 01:23:45,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:23:45" (1/1) ... [2020-11-30 01:23:45,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:23:45,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:23:46,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:23:46,047 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:23:46,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:23:46,199 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:23:46,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46 WrapperNode [2020-11-30 01:23:46,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:23:46,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:23:46,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:23:46,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:23:46,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:23:46,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:23:46,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:23:46,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:23:46,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... [2020-11-30 01:23:46,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:23:46,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:23:46,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:23:46,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:23:46,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/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 01:23:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:23:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 01:23:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:23:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:23:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 01:23:46,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 01:23:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 01:23:46,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 01:23:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-30 01:23:46,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-30 01:23:46,390 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-30 01:23:46,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-30 01:23:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:23:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 01:23:46,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:23:46,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:23:46,394 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 01:23:47,084 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:23:47,084 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 01:23:47,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:47 BoogieIcfgContainer [2020-11-30 01:23:47,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:23:47,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:23:47,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:23:47,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:23:47,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:23:45" (1/3) ... [2020-11-30 01:23:47,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edf495e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:23:47, skipping insertion in model container [2020-11-30 01:23:47,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:23:46" (2/3) ... [2020-11-30 01:23:47,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edf495e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:23:47, skipping insertion in model container [2020-11-30 01:23:47,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:47" (3/3) ... [2020-11-30 01:23:47,101 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-11-30 01:23:47,115 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:23:47,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:23:47,121 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:23:47,123 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:23:47,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,165 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,165 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,174 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,174 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,181 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,198 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,198 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:23:47,203 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 01:23:47,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-30 01:23:47,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:23:47,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:23:47,280 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:23:47,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:23:47,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:23:47,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:23:47,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:23:47,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:23:47,303 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:23:47,306 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-30 01:23:47,311 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-30 01:23:47,313 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-11-30 01:23:47,388 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-11-30 01:23:47,389 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 01:23:47,395 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-30 01:23:47,403 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-30 01:23:49,411 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-30 01:23:50,549 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-30 01:23:50,767 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-30 01:23:50,975 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-11-30 01:23:50,975 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-11-30 01:23:50,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-30 01:23:51,048 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-30 01:23:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-30 01:23:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:23:51,062 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:51,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:51,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:51,072 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-11-30 01:23:51,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:51,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457875521] [2020-11-30 01:23:51,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:51,401 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 01:23:51,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457875521] [2020-11-30 01:23:51,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:51,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:23:51,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971568375] [2020-11-30 01:23:51,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:23:51,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:51,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:23:51,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:23:51,430 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-30 01:23:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:51,511 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-30 01:23:51,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:23:51,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 01:23:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:51,553 INFO L225 Difference]: With dead ends: 670 [2020-11-30 01:23:51,553 INFO L226 Difference]: Without dead ends: 526 [2020-11-30 01:23:51,557 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 01:23:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-30 01:23:51,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-30 01:23:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-30 01:23:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-30 01:23:51,711 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-30 01:23:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:51,712 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-30 01:23:51,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:23:51,713 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-30 01:23:51,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:23:51,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:51,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:51,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:23:51,717 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:51,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:51,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1488897790, now seen corresponding path program 1 times [2020-11-30 01:23:51,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:51,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045352429] [2020-11-30 01:23:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:51,844 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 01:23:51,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045352429] [2020-11-30 01:23:51,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:51,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:23:51,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008633303] [2020-11-30 01:23:51,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:51,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:51,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:51,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:51,849 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-30 01:23:51,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:51,896 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-11-30 01:23:51,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:23:51,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 01:23:51,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:51,903 INFO L225 Difference]: With dead ends: 748 [2020-11-30 01:23:51,903 INFO L226 Difference]: Without dead ends: 460 [2020-11-30 01:23:51,904 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 01:23:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-11-30 01:23:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-11-30 01:23:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-11-30 01:23:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-11-30 01:23:51,938 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 11 [2020-11-30 01:23:51,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:51,938 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-11-30 01:23:51,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-11-30 01:23:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:23:51,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:51,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:51,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:23:51,942 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:51,943 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 1 times [2020-11-30 01:23:51,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:51,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246753492] [2020-11-30 01:23:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:52,089 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 01:23:52,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246753492] [2020-11-30 01:23:52,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:52,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:23:52,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786423696] [2020-11-30 01:23:52,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:23:52,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:52,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:23:52,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:23:52,092 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-11-30 01:23:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:52,108 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-11-30 01:23:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:23:52,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 01:23:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:52,114 INFO L225 Difference]: With dead ends: 442 [2020-11-30 01:23:52,115 INFO L226 Difference]: Without dead ends: 442 [2020-11-30 01:23:52,115 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 01:23:52,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-11-30 01:23:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-11-30 01:23:52,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-11-30 01:23:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-11-30 01:23:52,140 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-11-30 01:23:52,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:52,141 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-11-30 01:23:52,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:23:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-11-30 01:23:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:23:52,144 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:52,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:23:52,145 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:52,146 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-11-30 01:23:52,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:52,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379953598] [2020-11-30 01:23:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:52,261 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 01:23:52,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379953598] [2020-11-30 01:23:52,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:52,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:23:52,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867036980] [2020-11-30 01:23:52,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:52,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:52,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:52,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:52,264 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 4 states. [2020-11-30 01:23:52,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:52,319 INFO L93 Difference]: Finished difference Result 788 states and 2333 transitions. [2020-11-30 01:23:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:23:52,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:23:52,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:52,357 INFO L225 Difference]: With dead ends: 788 [2020-11-30 01:23:52,357 INFO L226 Difference]: Without dead ends: 412 [2020-11-30 01:23:52,358 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 01:23:52,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-30 01:23:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2020-11-30 01:23:52,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-11-30 01:23:52,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1087 transitions. [2020-11-30 01:23:52,379 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1087 transitions. Word has length 13 [2020-11-30 01:23:52,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:52,380 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1087 transitions. [2020-11-30 01:23:52,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:52,380 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1087 transitions. [2020-11-30 01:23:52,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:23:52,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:52,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:23:52,392 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:52,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-11-30 01:23:52,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:52,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47497810] [2020-11-30 01:23:52,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:52,504 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 01:23:52,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47497810] [2020-11-30 01:23:52,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:52,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:23:52,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508152388] [2020-11-30 01:23:52,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:52,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:52,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:52,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:52,507 INFO L87 Difference]: Start difference. First operand 376 states and 1087 transitions. Second operand 4 states. [2020-11-30 01:23:52,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:52,539 INFO L93 Difference]: Finished difference Result 494 states and 1370 transitions. [2020-11-30 01:23:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:23:52,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:23:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:52,542 INFO L225 Difference]: With dead ends: 494 [2020-11-30 01:23:52,543 INFO L226 Difference]: Without dead ends: 254 [2020-11-30 01:23:52,543 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 01:23:52,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-30 01:23:52,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-11-30 01:23:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-30 01:23:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-11-30 01:23:52,557 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 13 [2020-11-30 01:23:52,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:52,557 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-11-30 01:23:52,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-11-30 01:23:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:23:52,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:52,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:23:52,559 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:52,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:52,560 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-11-30 01:23:52,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:52,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747345969] [2020-11-30 01:23:52,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:52,674 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 01:23:52,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747345969] [2020-11-30 01:23:52,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:52,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:23:52,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379813741] [2020-11-30 01:23:52,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:23:52,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:52,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:23:52,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:23:52,677 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 4 states. [2020-11-30 01:23:52,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:52,746 INFO L93 Difference]: Finished difference Result 315 states and 812 transitions. [2020-11-30 01:23:52,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:23:52,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 01:23:52,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:52,749 INFO L225 Difference]: With dead ends: 315 [2020-11-30 01:23:52,749 INFO L226 Difference]: Without dead ends: 230 [2020-11-30 01:23:52,750 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 01:23:52,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-11-30 01:23:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-11-30 01:23:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-30 01:23:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 601 transitions. [2020-11-30 01:23:52,763 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 601 transitions. Word has length 14 [2020-11-30 01:23:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:52,764 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 601 transitions. [2020-11-30 01:23:52,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:23:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 601 transitions. [2020-11-30 01:23:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:23:52,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:52,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:23:52,769 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:52,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:52,771 INFO L82 PathProgramCache]: Analyzing trace with hash 243922642, now seen corresponding path program 1 times [2020-11-30 01:23:52,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:52,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924541956] [2020-11-30 01:23:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:52,889 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 01:23:52,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924541956] [2020-11-30 01:23:52,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:52,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:23:52,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163517508] [2020-11-30 01:23:52,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:23:52,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:52,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:23:52,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:23:52,891 INFO L87 Difference]: Start difference. First operand 230 states and 601 transitions. Second operand 5 states. [2020-11-30 01:23:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:52,973 INFO L93 Difference]: Finished difference Result 246 states and 585 transitions. [2020-11-30 01:23:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:23:52,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-30 01:23:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:52,976 INFO L225 Difference]: With dead ends: 246 [2020-11-30 01:23:52,976 INFO L226 Difference]: Without dead ends: 178 [2020-11-30 01:23:52,976 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 01:23:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-30 01:23:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-11-30 01:23:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-30 01:23:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-11-30 01:23:52,985 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 15 [2020-11-30 01:23:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:52,986 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-11-30 01:23:52,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:23:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-11-30 01:23:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:23:52,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:52,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:52,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:23:52,990 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:52,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-11-30 01:23:52,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:52,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522904438] [2020-11-30 01:23:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:53,118 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 01:23:53,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522904438] [2020-11-30 01:23:53,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:53,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:23:53,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037633114] [2020-11-30 01:23:53,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:23:53,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:53,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:23:53,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:23:53,120 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-11-30 01:23:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:53,216 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-11-30 01:23:53,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:23:53,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 01:23:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:53,218 INFO L225 Difference]: With dead ends: 171 [2020-11-30 01:23:53,218 INFO L226 Difference]: Without dead ends: 137 [2020-11-30 01:23:53,219 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 01:23:53,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-11-30 01:23:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-11-30 01:23:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-30 01:23:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-11-30 01:23:53,230 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-11-30 01:23:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:53,232 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-11-30 01:23:53,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:23:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-11-30 01:23:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:23:53,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:53,234 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 01:23:53,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:23:53,234 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-11-30 01:23:53,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:53,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18598332] [2020-11-30 01:23:53,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:53,372 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 01:23:53,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18598332] [2020-11-30 01:23:53,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:53,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:23:53,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988693267] [2020-11-30 01:23:53,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:23:53,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:53,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:23:53,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:23:53,375 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-11-30 01:23:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:53,480 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-11-30 01:23:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:23:53,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-30 01:23:53,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:53,481 INFO L225 Difference]: With dead ends: 132 [2020-11-30 01:23:53,481 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 01:23:53,482 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 01:23:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 01:23:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-30 01:23:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 01:23:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-11-30 01:23:53,485 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-11-30 01:23:53,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:53,485 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-11-30 01:23:53,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:23:53,485 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-11-30 01:23:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:23:53,486 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:23:53,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:23:53,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:23:53,487 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:23:53,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:23:53,487 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-11-30 01:23:53,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:23:53,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327082519] [2020-11-30 01:23:53,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:23:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:23:53,545 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 01:23:53,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327082519] [2020-11-30 01:23:53,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:23:53,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:23:53,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782069368] [2020-11-30 01:23:53,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:23:53,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:23:53,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:23:53,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:23:53,548 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-11-30 01:23:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:23:53,559 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-11-30 01:23:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:23:53,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-11-30 01:23:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:23:53,561 INFO L225 Difference]: With dead ends: 50 [2020-11-30 01:23:53,561 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:23:53,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:23:53,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:23:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:23:53,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:23:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:23:53,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-30 01:23:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:23:53,562 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:23:53,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:23:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:23:53,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:23:53,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:23:53,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:23:53 BasicIcfg [2020-11-30 01:23:53,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:23:53,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:23:53,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:23:53,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:23:53,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:23:47" (3/4) ... [2020-11-30 01:23:53,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:23:53,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 01:23:53,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 01:23:53,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-30 01:23:53,586 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-11-30 01:23:53,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-11-30 01:23:53,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:23:53,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:23:53,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:23:53,667 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0110f3e1-58b7-4724-b004-0bd7a6478abe/bin/uautomizer/witness.graphml [2020-11-30 01:23:53,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:23:53,669 INFO L168 Benchmark]: Toolchain (without parser) took 8233.21 ms. Allocated memory was 113.2 MB in the beginning and 169.9 MB in the end (delta: 56.6 MB). Free memory was 81.0 MB in the beginning and 121.4 MB in the end (delta: -40.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:53,670 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 37.6 MB in the beginning and 37.5 MB in the end (delta: 64.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:23:53,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.93 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 68.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:53,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.86 ms. Allocated memory is still 113.2 MB. Free memory was 68.8 MB in the beginning and 66.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:53,672 INFO L168 Benchmark]: Boogie Preprocessor took 47.33 ms. Allocated memory is still 113.2 MB. Free memory was 66.7 MB in the beginning and 65.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:53,672 INFO L168 Benchmark]: RCFGBuilder took 782.35 ms. Allocated memory is still 113.2 MB. Free memory was 65.3 MB in the beginning and 41.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:53,673 INFO L168 Benchmark]: TraceAbstraction took 6477.55 ms. Allocated memory was 113.2 MB in the beginning and 169.9 MB in the end (delta: 56.6 MB). Free memory was 40.8 MB in the beginning and 124.6 MB in the end (delta: -83.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:23:53,673 INFO L168 Benchmark]: Witness Printer took 96.35 ms. Allocated memory is still 169.9 MB. Free memory was 124.6 MB in the beginning and 121.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:23:53,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 37.6 MB in the beginning and 37.5 MB in the end (delta: 64.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 762.93 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 68.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.86 ms. Allocated memory is still 113.2 MB. Free memory was 68.8 MB in the beginning and 66.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.33 ms. Allocated memory is still 113.2 MB. Free memory was 66.7 MB in the beginning and 65.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 782.35 ms. Allocated memory is still 113.2 MB. Free memory was 65.3 MB in the beginning and 41.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6477.55 ms. Allocated memory was 113.2 MB in the beginning and 169.9 MB in the end (delta: 56.6 MB). Free memory was 40.8 MB in the beginning and 124.6 MB in the end (delta: -83.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 96.35 ms. Allocated memory is still 169.9 MB. Free memory was 124.6 MB in the beginning and 121.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1489 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 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, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 222 SDtfs, 227 SDslu, 318 SDs, 0 SdLazy, 183 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 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, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 5404 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...