./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96f16385 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/thin000_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 02f90981fedfb6782d9165385acb8cfadc06132f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-96f1638 [2020-12-02 12:13:44,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:13:44,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:13:45,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:13:45,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:13:45,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:13:45,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:13:45,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:13:45,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:13:45,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:13:45,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:13:45,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:13:45,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:13:45,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:13:45,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:13:45,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:13:45,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:13:45,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:13:45,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:13:45,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:13:45,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:13:45,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:13:45,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:13:45,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:13:45,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:13:45,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:13:45,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:13:45,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:13:45,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:13:45,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:13:45,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:13:45,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:13:45,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:13:45,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:13:45,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:13:45,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:13:45,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:13:45,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:13:45,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:13:45,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:13:45,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:13:45,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:13:45,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:13:45,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:13:45,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:13:45,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:13:45,090 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:13:45,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:13:45,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:13:45,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:13:45,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:13:45,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:13:45,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:13:45,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:13:45,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:13:45,093 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:13:45,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:13:45,093 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:13:45,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:13:45,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:13:45,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:13:45,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:13:45,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:13:45,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:13:45,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:13:45,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:13:45,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:13:45,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:13:45,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:13:45,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:13:45,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:13:45,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02f90981fedfb6782d9165385acb8cfadc06132f [2020-12-02 12:13:45,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:13:45,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:13:45,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:13:45,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:13:45,546 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:13:45,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2020-12-02 12:13:45,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e772465d3/689e86c3baf942e2816b484d7c683309/FLAG11aa2ee12 [2020-12-02 12:13:46,280 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:13:46,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2020-12-02 12:13:46,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e772465d3/689e86c3baf942e2816b484d7c683309/FLAG11aa2ee12 [2020-12-02 12:13:46,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e772465d3/689e86c3baf942e2816b484d7c683309 [2020-12-02 12:13:46,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:13:46,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:13:46,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:13:46,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:13:46,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:13:46,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:13:46" (1/1) ... [2020-12-02 12:13:46,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e8e196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:46, skipping insertion in model container [2020-12-02 12:13:46,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:13:46" (1/1) ... [2020-12-02 12:13:46,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:13:46,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:13:46,874 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i[949,962] [2020-12-02 12:13:47,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:13:47,167 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:13:47,186 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i[949,962] [2020-12-02 12:13:47,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:13:47,327 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:13:47,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47 WrapperNode [2020-12-02 12:13:47,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:13:47,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:13:47,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:13:47,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:13:47,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:13:47,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:13:47,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:13:47,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:13:47,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (1/1) ... [2020-12-02 12:13:47,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:13:47,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:13:47,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:13:47,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:13:47,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (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 [2020-12-02 12:13:47,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:13:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:13:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:13:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:13:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:13:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:13:47,526 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:13:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:13:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:13:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:13:47,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:13:47,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:13:47,529 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-02 12:13:47,912 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:13:47,912 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:13:47,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:47 BoogieIcfgContainer [2020-12-02 12:13:47,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:13:47,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:13:47,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:13:47,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:13:47,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:13:46" (1/3) ... [2020-12-02 12:13:47,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15db8837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:13:47, skipping insertion in model container [2020-12-02 12:13:47,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:47" (2/3) ... [2020-12-02 12:13:47,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15db8837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:13:47, skipping insertion in model container [2020-12-02 12:13:47,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:47" (3/3) ... [2020-12-02 12:13:47,924 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-12-02 12:13:47,942 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:13:47,942 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:13:47,946 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:13:47,947 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:13:47,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,986 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,986 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,987 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,987 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,987 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,987 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:47,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:48,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:48,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:48,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:48,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:48,010 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:13:48,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-02 12:13:48,069 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:13:48,071 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:13:48,071 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:13:48,071 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:13:48,071 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:13:48,071 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:13:48,071 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:13:48,072 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:13:48,085 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:13:48,087 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-02 12:13:48,090 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-02 12:13:48,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2020-12-02 12:13:48,137 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2020-12-02 12:13:48,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:13:48,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2020-12-02 12:13:48,144 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2020-12-02 12:13:50,479 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-02 12:13:50,757 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-02 12:13:50,839 INFO L131 LiptonReduction]: Checked pairs total: 1534 [2020-12-02 12:13:50,840 INFO L133 LiptonReduction]: Total number of compositions: 54 [2020-12-02 12:13:50,847 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-12-02 12:13:50,862 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-12-02 12:13:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-12-02 12:13:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-02 12:13:50,871 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:50,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-02 12:13:50,872 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:50,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1865753681, now seen corresponding path program 1 times [2020-12-02 12:13:50,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:50,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983289729] [2020-12-02 12:13:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:51,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983289729] [2020-12-02 12:13:51,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:51,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:51,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903189673] [2020-12-02 12:13:51,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 12:13:51,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:51,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 12:13:51,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:13:51,118 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-12-02 12:13:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:51,149 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-12-02 12:13:51,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 12:13:51,151 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-02 12:13:51,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:51,165 INFO L225 Difference]: With dead ends: 90 [2020-12-02 12:13:51,166 INFO L226 Difference]: Without dead ends: 74 [2020-12-02 12:13:51,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:13:51,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-02 12:13:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-02 12:13:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-02 12:13:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-12-02 12:13:51,223 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-12-02 12:13:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:51,224 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-12-02 12:13:51,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 12:13:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-12-02 12:13:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-02 12:13:51,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:51,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:51,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:13:51,225 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:51,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2003798512, now seen corresponding path program 1 times [2020-12-02 12:13:51,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:51,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869957949] [2020-12-02 12:13:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:51,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869957949] [2020-12-02 12:13:51,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:51,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:51,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222787085] [2020-12-02 12:13:51,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:13:51,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:51,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:13:51,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:51,388 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-12-02 12:13:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:51,426 INFO L93 Difference]: Finished difference Result 88 states and 179 transitions. [2020-12-02 12:13:51,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:51,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-02 12:13:51,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:51,428 INFO L225 Difference]: With dead ends: 88 [2020-12-02 12:13:51,428 INFO L226 Difference]: Without dead ends: 72 [2020-12-02 12:13:51,429 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 [2020-12-02 12:13:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-02 12:13:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-12-02 12:13:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-02 12:13:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-12-02 12:13:51,440 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 7 [2020-12-02 12:13:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:51,440 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-12-02 12:13:51,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:13:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-12-02 12:13:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:13:51,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:51,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:51,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:13:51,442 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:51,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1988772591, now seen corresponding path program 1 times [2020-12-02 12:13:51,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:51,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882519686] [2020-12-02 12:13:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:51,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882519686] [2020-12-02 12:13:51,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:51,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:51,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190418744] [2020-12-02 12:13:51,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:51,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:51,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:51,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:51,525 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 5 states. [2020-12-02 12:13:51,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:51,591 INFO L93 Difference]: Finished difference Result 123 states and 245 transitions. [2020-12-02 12:13:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 12:13:51,592 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-02 12:13:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:51,593 INFO L225 Difference]: With dead ends: 123 [2020-12-02 12:13:51,593 INFO L226 Difference]: Without dead ends: 84 [2020-12-02 12:13:51,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-02 12:13:51,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-02 12:13:51,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2020-12-02 12:13:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-02 12:13:51,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 136 transitions. [2020-12-02 12:13:51,602 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 136 transitions. Word has length 8 [2020-12-02 12:13:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:51,602 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 136 transitions. [2020-12-02 12:13:51,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 136 transitions. [2020-12-02 12:13:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:13:51,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:51,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:51,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:13:51,604 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:51,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:51,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1988232509, now seen corresponding path program 1 times [2020-12-02 12:13:51,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:51,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136300939] [2020-12-02 12:13:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:51,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136300939] [2020-12-02 12:13:51,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:51,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:51,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293094108] [2020-12-02 12:13:51,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:51,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:51,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:51,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:51,709 INFO L87 Difference]: Start difference. First operand 66 states and 136 transitions. Second operand 5 states. [2020-12-02 12:13:51,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:51,730 INFO L93 Difference]: Finished difference Result 72 states and 140 transitions. [2020-12-02 12:13:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:51,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-02 12:13:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:51,732 INFO L225 Difference]: With dead ends: 72 [2020-12-02 12:13:51,732 INFO L226 Difference]: Without dead ends: 60 [2020-12-02 12:13:51,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:13:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-02 12:13:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-12-02 12:13:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-02 12:13:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2020-12-02 12:13:51,740 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 8 [2020-12-02 12:13:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:51,741 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2020-12-02 12:13:51,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2020-12-02 12:13:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:13:51,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:51,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:51,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:13:51,743 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:51,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:51,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1522428958, now seen corresponding path program 1 times [2020-12-02 12:13:51,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:51,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326415272] [2020-12-02 12:13:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:51,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326415272] [2020-12-02 12:13:51,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:51,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:51,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753559086] [2020-12-02 12:13:51,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:51,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:51,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:51,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:51,814 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand 5 states. [2020-12-02 12:13:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:51,866 INFO L93 Difference]: Finished difference Result 83 states and 163 transitions. [2020-12-02 12:13:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:13:51,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-02 12:13:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:51,875 INFO L225 Difference]: With dead ends: 83 [2020-12-02 12:13:51,875 INFO L226 Difference]: Without dead ends: 56 [2020-12-02 12:13:51,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:13:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-02 12:13:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-12-02 12:13:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-02 12:13:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 107 transitions. [2020-12-02 12:13:51,889 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 107 transitions. Word has length 9 [2020-12-02 12:13:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:51,889 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 107 transitions. [2020-12-02 12:13:51,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2020-12-02 12:13:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:13:51,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:51,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:51,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:13:51,893 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:51,894 INFO L82 PathProgramCache]: Analyzing trace with hash 5797126, now seen corresponding path program 1 times [2020-12-02 12:13:51,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:51,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114423059] [2020-12-02 12:13:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:51,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114423059] [2020-12-02 12:13:51,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:51,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:51,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605129921] [2020-12-02 12:13:51,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:51,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:51,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:51,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:51,997 INFO L87 Difference]: Start difference. First operand 56 states and 107 transitions. Second operand 5 states. [2020-12-02 12:13:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:52,029 INFO L93 Difference]: Finished difference Result 66 states and 122 transitions. [2020-12-02 12:13:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:13:52,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-02 12:13:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:52,031 INFO L225 Difference]: With dead ends: 66 [2020-12-02 12:13:52,031 INFO L226 Difference]: Without dead ends: 42 [2020-12-02 12:13:52,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:13:52,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-02 12:13:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-02 12:13:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-02 12:13:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-12-02 12:13:52,036 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 10 [2020-12-02 12:13:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:52,036 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-12-02 12:13:52,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-12-02 12:13:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:13:52,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:52,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:52,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:13:52,038 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:52,039 INFO L82 PathProgramCache]: Analyzing trace with hash 567543910, now seen corresponding path program 1 times [2020-12-02 12:13:52,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:52,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49390161] [2020-12-02 12:13:52,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:52,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49390161] [2020-12-02 12:13:52,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:52,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:52,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291916348] [2020-12-02 12:13:52,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:52,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:52,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:52,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:52,084 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 5 states. [2020-12-02 12:13:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:52,117 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-12-02 12:13:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:13:52,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-02 12:13:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:52,123 INFO L225 Difference]: With dead ends: 36 [2020-12-02 12:13:52,123 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:13:52,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:13:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:13:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:13:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:13:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:13:52,125 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-02 12:13:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:52,125 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:13:52,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:13:52,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:13:52,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 12:13:52,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:13:52 BasicIcfg [2020-12-02 12:13:52,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:13:52,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:13:52,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:13:52,130 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:13:52,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:47" (3/4) ... [2020-12-02 12:13:52,135 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:13:52,143 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:13:52,143 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:13:52,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-02 12:13:52,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:13:52,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:13:52,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:13:52,195 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:13:52,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:13:52,201 INFO L168 Benchmark]: Toolchain (without parser) took 5605.38 ms. Allocated memory was 46.1 MB in the beginning and 104.9 MB in the end (delta: 58.7 MB). Free memory was 21.6 MB in the beginning and 44.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,202 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 46.1 MB. Free memory is still 27.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:13:52,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.27 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.4 MB in the beginning and 29.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 27.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,207 INFO L168 Benchmark]: Boogie Preprocessor took 30.03 ms. Allocated memory is still 58.7 MB. Free memory was 27.1 MB in the beginning and 26.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,207 INFO L168 Benchmark]: RCFGBuilder took 504.34 ms. Allocated memory is still 58.7 MB. Free memory was 25.7 MB in the beginning and 38.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,210 INFO L168 Benchmark]: TraceAbstraction took 4212.67 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 37.8 MB in the beginning and 47.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,210 INFO L168 Benchmark]: Witness Printer took 67.21 ms. Allocated memory is still 104.9 MB. Free memory was 47.8 MB in the beginning and 44.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:52,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 46.1 MB. Free memory is still 27.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 731.27 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.4 MB in the beginning and 29.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 27.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.03 ms. Allocated memory is still 58.7 MB. Free memory was 27.1 MB in the beginning and 26.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 504.34 ms. Allocated memory is still 58.7 MB. Free memory was 25.7 MB in the beginning and 38.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4212.67 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 37.8 MB in the beginning and 47.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * Witness Printer took 67.21 ms. Allocated memory is still 104.9 MB. Free memory was 47.8 MB in the beginning and 44.7 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 504 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 66 PlacesBefore, 23 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 1534 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 115 SDtfs, 122 SDslu, 170 SDs, 0 SdLazy, 67 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...