./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f6963db7fce396e00371f494f6797e19a5cce06a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 00:30:18,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:30:18,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:30:18,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:30:18,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:30:18,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:30:18,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:30:18,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:30:18,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:30:18,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:30:18,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:30:18,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:30:18,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:30:18,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:30:18,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:30:18,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:30:18,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:30:18,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:30:18,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:30:18,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:30:18,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:30:18,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:30:18,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:30:18,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:30:18,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:30:18,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:30:18,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:30:18,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:30:18,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:30:18,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:30:18,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:30:18,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:30:18,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:30:18,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:30:18,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:30:18,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:30:18,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:30:18,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:30:18,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:30:18,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:30:18,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:30:18,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:30:18,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:30:18,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:30:18,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:30:18,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:30:18,490 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:30:18,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:30:18,490 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:30:18,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:30:18,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:30:18,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:30:18,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:30:18,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:30:18,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:30:18,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:30:18,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:30:18,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:30:18,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:30:18,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:30:18,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:30:18,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:30:18,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:30:18,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:30:18,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:30:18,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:30:18,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:30:18,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:30:18,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:30:18,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:30:18,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:30:18,497 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6963db7fce396e00371f494f6797e19a5cce06a [2020-10-26 00:30:18,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:30:18,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:30:18,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:30:18,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:30:18,939 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:30:18,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i [2020-10-26 00:30:19,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbf71800/2bec7034a2fa4542a219b4f73d58b639/FLAG30147c4dc [2020-10-26 00:30:19,861 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:30:19,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.opt.i [2020-10-26 00:30:19,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbf71800/2bec7034a2fa4542a219b4f73d58b639/FLAG30147c4dc [2020-10-26 00:30:20,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbf71800/2bec7034a2fa4542a219b4f73d58b639 [2020-10-26 00:30:20,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:30:20,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:30:20,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:30:20,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:30:20,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:30:20,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6868d53f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20, skipping insertion in model container [2020-10-26 00:30:20,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:30:20,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:30:20,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:30:20,566 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:30:20,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:30:20,733 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:30:20,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20 WrapperNode [2020-10-26 00:30:20,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:30:20,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:30:20,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:30:20,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:30:20,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:30:20,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:30:20,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:30:20,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:30:20,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... [2020-10-26 00:30:20,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:30:20,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:30:20,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:30:20,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:30:20,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 00:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:30:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:30:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:30:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:30:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-26 00:30:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-26 00:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-26 00:30:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-26 00:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:30:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:30:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:30:20,918 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-26 00:30:21,485 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:30:21,485 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:30:21,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:30:21 BoogieIcfgContainer [2020-10-26 00:30:21,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:30:21,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:30:21,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:30:21,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:30:21,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:30:20" (1/3) ... [2020-10-26 00:30:21,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658052f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:30:21, skipping insertion in model container [2020-10-26 00:30:21,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:30:20" (2/3) ... [2020-10-26 00:30:21,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658052f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:30:21, skipping insertion in model container [2020-10-26 00:30:21,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:30:21" (3/3) ... [2020-10-26 00:30:21,499 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-10-26 00:30:21,513 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:30:21,513 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:30:21,521 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:30:21,522 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:30:21,568 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,569 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,569 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,569 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,571 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,571 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,571 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,573 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,573 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,575 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,575 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,575 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,575 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,576 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,576 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,579 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,580 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,580 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,580 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,588 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,588 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,589 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,589 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,594 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,598 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,598 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,599 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:30:21,605 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:30:21,621 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 00:30:21,648 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:30:21,648 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:30:21,648 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:30:21,649 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:30:21,649 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:30:21,649 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:30:21,649 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:30:21,650 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:30:21,666 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:30:21,669 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-26 00:30:21,673 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-26 00:30:21,676 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-10-26 00:30:21,732 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-10-26 00:30:21,732 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:30:21,738 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. [2020-10-26 00:30:21,742 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-26 00:30:24,128 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-26 00:30:24,252 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-26 00:30:24,486 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-10-26 00:30:24,486 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-10-26 00:30:24,492 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-26 00:30:24,556 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-26 00:30:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-26 00:30:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:30:24,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:24,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:24,571 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:24,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:24,578 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-10-26 00:30:24,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:24,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968811673] [2020-10-26 00:30:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:24,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968811673] [2020-10-26 00:30:24,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:24,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:30:24,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294935523] [2020-10-26 00:30:24,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:30:24,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:30:24,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:24,923 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-26 00:30:25,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:25,020 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-26 00:30:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:30:25,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-26 00:30:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:25,062 INFO L225 Difference]: With dead ends: 670 [2020-10-26 00:30:25,065 INFO L226 Difference]: Without dead ends: 526 [2020-10-26 00:30:25,068 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 [2020-10-26 00:30:25,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-26 00:30:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-26 00:30:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-26 00:30:25,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-26 00:30:25,219 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-26 00:30:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:25,221 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-26 00:30:25,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:30:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-26 00:30:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 00:30:25,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:25,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:25,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:30:25,234 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:25,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1488897790, now seen corresponding path program 1 times [2020-10-26 00:30:25,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:25,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083473584] [2020-10-26 00:30:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:25,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083473584] [2020-10-26 00:30:25,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:25,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:25,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252065610] [2020-10-26 00:30:25,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:25,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:25,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:25,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:25,375 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-26 00:30:25,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:25,416 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-10-26 00:30:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:30:25,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 00:30:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:25,421 INFO L225 Difference]: With dead ends: 748 [2020-10-26 00:30:25,421 INFO L226 Difference]: Without dead ends: 460 [2020-10-26 00:30:25,422 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 [2020-10-26 00:30:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-26 00:30:25,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-10-26 00:30:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-26 00:30:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-10-26 00:30:25,441 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 11 [2020-10-26 00:30:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:25,441 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-10-26 00:30:25,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-10-26 00:30:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:30:25,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:25,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:25,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:30:25,444 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:25,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:25,444 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 1 times [2020-10-26 00:30:25,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:25,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685491893] [2020-10-26 00:30:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:25,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685491893] [2020-10-26 00:30:25,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:25,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:30:25,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40686050] [2020-10-26 00:30:25,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:30:25,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:25,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:30:25,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:25,521 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-10-26 00:30:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:25,531 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-10-26 00:30:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:30:25,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-26 00:30:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:25,536 INFO L225 Difference]: With dead ends: 442 [2020-10-26 00:30:25,536 INFO L226 Difference]: Without dead ends: 442 [2020-10-26 00:30:25,537 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 [2020-10-26 00:30:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-26 00:30:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-26 00:30:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 00:30:25,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-10-26 00:30:25,555 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-10-26 00:30:25,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:25,556 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-10-26 00:30:25,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:30:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-10-26 00:30:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:30:25,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:25,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:25,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:30:25,558 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:25,559 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-10-26 00:30:25,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:25,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089142485] [2020-10-26 00:30:25,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:25,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089142485] [2020-10-26 00:30:25,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:25,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:30:25,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930881543] [2020-10-26 00:30:25,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:25,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:25,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:25,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:25,652 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 4 states. [2020-10-26 00:30:25,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:25,704 INFO L93 Difference]: Finished difference Result 788 states and 2333 transitions. [2020-10-26 00:30:25,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:30:25,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:30:25,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:25,708 INFO L225 Difference]: With dead ends: 788 [2020-10-26 00:30:25,709 INFO L226 Difference]: Without dead ends: 412 [2020-10-26 00:30:25,710 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 [2020-10-26 00:30:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-26 00:30:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2020-10-26 00:30:25,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-26 00:30:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1087 transitions. [2020-10-26 00:30:25,728 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1087 transitions. Word has length 13 [2020-10-26 00:30:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:25,729 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1087 transitions. [2020-10-26 00:30:25,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1087 transitions. [2020-10-26 00:30:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:30:25,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:25,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:25,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:30:25,737 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:25,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:25,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-10-26 00:30:25,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:25,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748508969] [2020-10-26 00:30:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:25,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748508969] [2020-10-26 00:30:25,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:25,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:25,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416115935] [2020-10-26 00:30:25,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:25,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:25,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:25,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:25,831 INFO L87 Difference]: Start difference. First operand 376 states and 1087 transitions. Second operand 4 states. [2020-10-26 00:30:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:25,867 INFO L93 Difference]: Finished difference Result 494 states and 1370 transitions. [2020-10-26 00:30:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:30:25,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:30:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:25,870 INFO L225 Difference]: With dead ends: 494 [2020-10-26 00:30:25,870 INFO L226 Difference]: Without dead ends: 254 [2020-10-26 00:30:25,870 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 [2020-10-26 00:30:25,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-26 00:30:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-26 00:30:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-26 00:30:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-10-26 00:30:25,880 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 13 [2020-10-26 00:30:25,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:25,881 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-10-26 00:30:25,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:25,881 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-10-26 00:30:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 00:30:25,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:25,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:25,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:30:25,882 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:25,883 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-10-26 00:30:25,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:25,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542769625] [2020-10-26 00:30:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:25,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542769625] [2020-10-26 00:30:25,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:25,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:25,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304613250] [2020-10-26 00:30:25,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:30:25,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:25,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:30:25,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:30:25,951 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 4 states. [2020-10-26 00:30:26,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:26,016 INFO L93 Difference]: Finished difference Result 315 states and 812 transitions. [2020-10-26 00:30:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:30:26,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 00:30:26,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:26,019 INFO L225 Difference]: With dead ends: 315 [2020-10-26 00:30:26,019 INFO L226 Difference]: Without dead ends: 230 [2020-10-26 00:30:26,019 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 [2020-10-26 00:30:26,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-26 00:30:26,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-26 00:30:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-26 00:30:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 601 transitions. [2020-10-26 00:30:26,027 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 601 transitions. Word has length 14 [2020-10-26 00:30:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:26,028 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 601 transitions. [2020-10-26 00:30:26,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:30:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 601 transitions. [2020-10-26 00:30:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 00:30:26,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:26,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:26,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:30:26,029 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash 243922642, now seen corresponding path program 1 times [2020-10-26 00:30:26,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:26,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525176204] [2020-10-26 00:30:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:26,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525176204] [2020-10-26 00:30:26,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:26,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:30:26,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59278308] [2020-10-26 00:30:26,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:30:26,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:26,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:30:26,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:30:26,093 INFO L87 Difference]: Start difference. First operand 230 states and 601 transitions. Second operand 5 states. [2020-10-26 00:30:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:26,152 INFO L93 Difference]: Finished difference Result 246 states and 585 transitions. [2020-10-26 00:30:26,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:30:26,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-26 00:30:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:26,155 INFO L225 Difference]: With dead ends: 246 [2020-10-26 00:30:26,155 INFO L226 Difference]: Without dead ends: 178 [2020-10-26 00:30:26,155 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 [2020-10-26 00:30:26,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-26 00:30:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-10-26 00:30:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-26 00:30:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-10-26 00:30:26,162 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 15 [2020-10-26 00:30:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:26,163 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-10-26 00:30:26,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:30:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-10-26 00:30:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 00:30:26,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:26,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:26,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 00:30:26,165 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:26,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-10-26 00:30:26,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:26,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123988109] [2020-10-26 00:30:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:26,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:26,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123988109] [2020-10-26 00:30:26,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:26,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 00:30:26,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728452305] [2020-10-26 00:30:26,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 00:30:26,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:26,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 00:30:26,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:30:26,238 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-10-26 00:30:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:26,326 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-10-26 00:30:26,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:30:26,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-26 00:30:26,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:26,328 INFO L225 Difference]: With dead ends: 171 [2020-10-26 00:30:26,328 INFO L226 Difference]: Without dead ends: 137 [2020-10-26 00:30:26,329 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 [2020-10-26 00:30:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-26 00:30:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-26 00:30:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-26 00:30:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-10-26 00:30:26,340 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-10-26 00:30:26,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:26,340 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-10-26 00:30:26,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 00:30:26,341 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-10-26 00:30:26,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:30:26,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:26,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:30:26,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 00:30:26,342 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:26,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:26,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-10-26 00:30:26,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:26,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199243590] [2020-10-26 00:30:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:26,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199243590] [2020-10-26 00:30:26,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:26,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 00:30:26,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98310521] [2020-10-26 00:30:26,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 00:30:26,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:26,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 00:30:26,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:30:26,454 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-10-26 00:30:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:26,534 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-10-26 00:30:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 00:30:26,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-26 00:30:26,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:26,536 INFO L225 Difference]: With dead ends: 132 [2020-10-26 00:30:26,536 INFO L226 Difference]: Without dead ends: 51 [2020-10-26 00:30:26,536 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 [2020-10-26 00:30:26,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-26 00:30:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-26 00:30:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-26 00:30:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-26 00:30:26,539 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-10-26 00:30:26,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:26,539 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-26 00:30:26,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 00:30:26,540 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-26 00:30:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 00:30:26,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:30:26,541 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] [2020-10-26 00:30:26,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 00:30:26,541 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:30:26,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:30:26,542 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-10-26 00:30:26,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:30:26,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465747089] [2020-10-26 00:30:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:30:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:30:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:30:26,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465747089] [2020-10-26 00:30:26,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:30:26,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:30:26,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737200304] [2020-10-26 00:30:26,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:30:26,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:30:26,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:30:26,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:30:26,574 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-26 00:30:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:30:26,580 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-26 00:30:26,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:30:26,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-26 00:30:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:30:26,582 INFO L225 Difference]: With dead ends: 50 [2020-10-26 00:30:26,582 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:30:26,582 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 [2020-10-26 00:30:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:30:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:30:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:30:26,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:30:26,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-26 00:30:26,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:30:26,583 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:30:26,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:30:26,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:30:26,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:30:26,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 00:30:26,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:30:26 BasicIcfg [2020-10-26 00:30:26,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:30:26,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:30:26,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:30:26,589 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:30:26,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:30:21" (3/4) ... [2020-10-26 00:30:26,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:30:26,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:30:26,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:30:26,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-26 00:30:26,602 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-26 00:30:26,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-26 00:30:26,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:30:26,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:30:26,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:30:26,652 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:30:26,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:30:26,655 INFO L168 Benchmark]: Toolchain (without parser) took 6598.57 ms. Allocated memory was 41.9 MB in the beginning and 119.5 MB in the end (delta: 77.6 MB). Free memory was 26.3 MB in the beginning and 69.7 MB in the end (delta: -43.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,655 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory was 28.2 MB in the beginning and 28.2 MB in the end (delta: 19.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:30:26,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.46 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 25.7 MB in the beginning and 23.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.22 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 21.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,657 INFO L168 Benchmark]: Boogie Preprocessor took 29.05 ms. Allocated memory is still 50.3 MB. Free memory was 21.6 MB in the beginning and 20.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,658 INFO L168 Benchmark]: RCFGBuilder took 671.72 ms. Allocated memory is still 50.3 MB. Free memory was 20.0 MB in the beginning and 22.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,659 INFO L168 Benchmark]: TraceAbstraction took 5097.99 ms. Allocated memory was 50.3 MB in the beginning and 119.5 MB in the end (delta: 69.2 MB). Free memory was 22.3 MB in the beginning and 71.8 MB in the end (delta: -49.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,659 INFO L168 Benchmark]: Witness Printer took 64.17 ms. Allocated memory is still 119.5 MB. Free memory was 71.8 MB in the beginning and 69.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:30:26,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory was 28.2 MB in the beginning and 28.2 MB in the end (delta: 19.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 672.46 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 25.7 MB in the beginning and 23.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.22 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 21.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.05 ms. Allocated memory is still 50.3 MB. Free memory was 21.6 MB in the beginning and 20.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 671.72 ms. Allocated memory is still 50.3 MB. Free memory was 20.0 MB in the beginning and 22.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5097.99 ms. Allocated memory was 50.3 MB in the beginning and 119.5 MB in the end (delta: 69.2 MB). Free memory was 22.3 MB in the beginning and 71.8 MB in the end (delta: -49.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 64.17 ms. Allocated memory is still 119.5 MB. Free memory was 71.8 MB in the beginning and 69.7 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 1489 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s 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...