./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe017_tso.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/safe017_tso.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 65f55760d11a4468ae1abb0511efc1da05ee08b9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:09:04,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:09:04,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:09:04,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:09:04,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:09:04,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:09:04,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:09:04,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:09:04,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:09:04,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:09:04,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:09:04,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:09:04,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:09:04,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:09:04,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:09:04,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:09:04,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:09:04,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:09:04,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:09:04,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:09:04,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:09:04,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:09:04,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:09:04,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:09:04,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:09:04,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:09:04,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:09:04,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:09:04,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:09:04,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:09:04,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:09:04,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:09:04,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:09:04,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:09:04,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:09:04,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:09:04,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:09:04,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:09:04,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:09:04,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:09:04,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:09:04,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:09:04,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:09:04,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:09:04,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:09:04,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:09:04,407 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:09:04,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:09:04,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:09:04,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:09:04,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:09:04,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:09:04,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:09:04,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:09:04,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:09:04,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:09:04,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:09:04,409 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:09:04,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:09:04,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:09:04,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:09:04,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:09:04,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:09:04,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:09:04,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:09:04,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:09:04,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:09:04,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:09:04,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:09:04,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:09:04,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:09:04,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65f55760d11a4468ae1abb0511efc1da05ee08b9 [2020-12-02 12:09:04,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:09:04,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:09:04,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:09:04,906 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:09:04,907 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:09:04,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i [2020-12-02 12:09:05,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a93a08a5/5fe93444cd0344038b46d1a463eaec79/FLAG01bf6341c [2020-12-02 12:09:05,698 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:09:05,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe017_tso.opt.i [2020-12-02 12:09:05,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a93a08a5/5fe93444cd0344038b46d1a463eaec79/FLAG01bf6341c [2020-12-02 12:09:05,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a93a08a5/5fe93444cd0344038b46d1a463eaec79 [2020-12-02 12:09:05,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:09:05,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:09:05,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:09:05,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:09:05,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:09:05,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:09:05" (1/1) ... [2020-12-02 12:09:05,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb58cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:05, skipping insertion in model container [2020-12-02 12:09:05,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:09:05" (1/1) ... [2020-12-02 12:09:05,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:09:06,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:09:06,385 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/safe017_tso.opt.i[949,962] [2020-12-02 12:09:06,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:09:06,651 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:09:06,668 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/safe017_tso.opt.i[949,962] [2020-12-02 12:09:06,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:09:06,833 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:09:06,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06 WrapperNode [2020-12-02 12:09:06,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:09:06,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:09:06,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:09:06,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:09:06,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:09:06,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:09:06,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:09:06,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:09:06,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (1/1) ... [2020-12-02 12:09:06,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:09:06,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:09:06,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:09:06,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:09:06,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (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 12:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:09:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:09:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:09:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:09:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:09:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:09:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:09:07,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:09:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:09:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:09:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:09:07,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:09:07,042 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 12:09:07,421 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:09:07,422 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:09:07,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:09:07 BoogieIcfgContainer [2020-12-02 12:09:07,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:09:07,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:09:07,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:09:07,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:09:07,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:09:05" (1/3) ... [2020-12-02 12:09:07,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1379aba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:09:07, skipping insertion in model container [2020-12-02 12:09:07,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:09:06" (2/3) ... [2020-12-02 12:09:07,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1379aba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:09:07, skipping insertion in model container [2020-12-02 12:09:07,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:09:07" (3/3) ... [2020-12-02 12:09:07,437 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2020-12-02 12:09:07,454 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:09:07,454 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:09:07,460 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:09:07,461 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:09:07,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,508 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,509 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,509 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,512 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,512 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,514 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,514 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,514 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,515 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,519 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,520 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,520 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,520 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:09:07,542 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:09:07,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:09:07,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:09:07,578 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:09:07,578 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:09:07,578 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:09:07,579 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:09:07,579 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:09:07,579 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:09:07,579 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:09:07,594 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:09:07,597 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 72 transitions, 159 flow [2020-12-02 12:09:07,601 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 72 transitions, 159 flow [2020-12-02 12:09:07,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 72 transitions, 159 flow [2020-12-02 12:09:07,664 INFO L129 PetriNetUnfolder]: 2/69 cut-off events. [2020-12-02 12:09:07,665 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:09:07,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 2/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-02 12:09:07,674 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2020-12-02 12:09:10,455 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-12-02 12:09:10,743 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-12-02 12:09:11,100 INFO L131 LiptonReduction]: Checked pairs total: 2267 [2020-12-02 12:09:11,100 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-02 12:09:11,108 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-12-02 12:09:11,131 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-12-02 12:09:11,133 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-12-02 12:09:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:09:11,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:11,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:11,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:11,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash 968887471, now seen corresponding path program 1 times [2020-12-02 12:09:11,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:11,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639477695] [2020-12-02 12:09:11,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:11,447 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 12:09:11,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639477695] [2020-12-02 12:09:11,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:11,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-02 12:09:11,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337338640] [2020-12-02 12:09:11,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 12:09:11,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:11,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 12:09:11,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:09:11,474 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-12-02 12:09:11,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:11,529 INFO L93 Difference]: Finished difference Result 356 states and 939 transitions. [2020-12-02 12:09:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:09:11,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-02 12:09:11,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:11,549 INFO L225 Difference]: With dead ends: 356 [2020-12-02 12:09:11,549 INFO L226 Difference]: Without dead ends: 237 [2020-12-02 12:09:11,551 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 [2020-12-02 12:09:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-02 12:09:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 209. [2020-12-02 12:09:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-12-02 12:09:11,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 526 transitions. [2020-12-02 12:09:11,644 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 526 transitions. Word has length 8 [2020-12-02 12:09:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:11,645 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 526 transitions. [2020-12-02 12:09:11,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 12:09:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 526 transitions. [2020-12-02 12:09:11,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:09:11,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:11,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:11,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:09:11,649 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:11,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:11,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1958496591, now seen corresponding path program 1 times [2020-12-02 12:09:11,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:11,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505944965] [2020-12-02 12:09:11,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:11,799 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 12:09:11,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505944965] [2020-12-02 12:09:11,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:11,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-02 12:09:11,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207958135] [2020-12-02 12:09:11,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 12:09:11,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:11,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 12:09:11,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:09:11,806 INFO L87 Difference]: Start difference. First operand 209 states and 526 transitions. Second operand 3 states. [2020-12-02 12:09:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:11,821 INFO L93 Difference]: Finished difference Result 200 states and 497 transitions. [2020-12-02 12:09:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:09:11,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-02 12:09:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:11,824 INFO L225 Difference]: With dead ends: 200 [2020-12-02 12:09:11,825 INFO L226 Difference]: Without dead ends: 200 [2020-12-02 12:09:11,826 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 [2020-12-02 12:09:11,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-02 12:09:11,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 196. [2020-12-02 12:09:11,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-12-02 12:09:11,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 485 transitions. [2020-12-02 12:09:11,845 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 485 transitions. Word has length 9 [2020-12-02 12:09:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:11,846 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 485 transitions. [2020-12-02 12:09:11,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 12:09:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 485 transitions. [2020-12-02 12:09:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:09:11,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:11,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:11,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:09:11,848 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:11,849 INFO L82 PathProgramCache]: Analyzing trace with hash -48326288, now seen corresponding path program 1 times [2020-12-02 12:09:11,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:11,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748778915] [2020-12-02 12:09:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:11,900 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 12:09:11,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748778915] [2020-12-02 12:09:11,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:11,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-02 12:09:11,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847375427] [2020-12-02 12:09:11,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 12:09:11,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:11,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 12:09:11,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:09:11,903 INFO L87 Difference]: Start difference. First operand 196 states and 485 transitions. Second operand 3 states. [2020-12-02 12:09:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:11,911 INFO L93 Difference]: Finished difference Result 192 states and 471 transitions. [2020-12-02 12:09:11,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:09:11,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-02 12:09:11,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:11,914 INFO L225 Difference]: With dead ends: 192 [2020-12-02 12:09:11,914 INFO L226 Difference]: Without dead ends: 192 [2020-12-02 12:09:11,915 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 [2020-12-02 12:09:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-02 12:09:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-12-02 12:09:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-02 12:09:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 471 transitions. [2020-12-02 12:09:11,941 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 471 transitions. Word has length 9 [2020-12-02 12:09:11,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:11,941 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 471 transitions. [2020-12-02 12:09:11,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 12:09:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 471 transitions. [2020-12-02 12:09:11,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:09:11,943 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:11,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:11,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:09:11,944 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:11,944 INFO L82 PathProgramCache]: Analyzing trace with hash -602918994, now seen corresponding path program 1 times [2020-12-02 12:09:11,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:11,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847290654] [2020-12-02 12:09:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,005 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 12:09:12,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847290654] [2020-12-02 12:09:12,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:09:12,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638468946] [2020-12-02 12:09:12,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:09:12,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:09:12,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:09:12,008 INFO L87 Difference]: Start difference. First operand 192 states and 471 transitions. Second operand 4 states. [2020-12-02 12:09:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,028 INFO L93 Difference]: Finished difference Result 206 states and 492 transitions. [2020-12-02 12:09:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:09:12,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-02 12:09:12,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,031 INFO L225 Difference]: With dead ends: 206 [2020-12-02 12:09:12,031 INFO L226 Difference]: Without dead ends: 206 [2020-12-02 12:09:12,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:09:12,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-02 12:09:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 170. [2020-12-02 12:09:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-02 12:09:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 416 transitions. [2020-12-02 12:09:12,046 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 416 transitions. Word has length 10 [2020-12-02 12:09:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,046 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 416 transitions. [2020-12-02 12:09:12,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:09:12,047 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 416 transitions. [2020-12-02 12:09:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 12:09:12,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:12,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:12,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:09:12,049 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:12,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:12,050 INFO L82 PathProgramCache]: Analyzing trace with hash -779947866, now seen corresponding path program 1 times [2020-12-02 12:09:12,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:12,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530616254] [2020-12-02 12:09:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,159 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 12:09:12,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530616254] [2020-12-02 12:09:12,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:09:12,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402109333] [2020-12-02 12:09:12,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:09:12,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:09:12,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:09:12,161 INFO L87 Difference]: Start difference. First operand 170 states and 416 transitions. Second operand 4 states. [2020-12-02 12:09:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,186 INFO L93 Difference]: Finished difference Result 216 states and 501 transitions. [2020-12-02 12:09:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:09:12,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-02 12:09:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,188 INFO L225 Difference]: With dead ends: 216 [2020-12-02 12:09:12,189 INFO L226 Difference]: Without dead ends: 192 [2020-12-02 12:09:12,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:09:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-02 12:09:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 160. [2020-12-02 12:09:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-02 12:09:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 381 transitions. [2020-12-02 12:09:12,203 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 381 transitions. Word has length 11 [2020-12-02 12:09:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,205 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 381 transitions. [2020-12-02 12:09:12,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:09:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 381 transitions. [2020-12-02 12:09:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 12:09:12,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:12,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:12,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:09:12,209 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:12,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:12,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1510620579, now seen corresponding path program 1 times [2020-12-02 12:09:12,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:12,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629496738] [2020-12-02 12:09:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,272 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 12:09:12,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629496738] [2020-12-02 12:09:12,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:09:12,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547813691] [2020-12-02 12:09:12,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:09:12,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:09:12,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:09:12,275 INFO L87 Difference]: Start difference. First operand 160 states and 381 transitions. Second operand 4 states. [2020-12-02 12:09:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,310 INFO L93 Difference]: Finished difference Result 188 states and 407 transitions. [2020-12-02 12:09:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:09:12,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-02 12:09:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,313 INFO L225 Difference]: With dead ends: 188 [2020-12-02 12:09:12,313 INFO L226 Difference]: Without dead ends: 136 [2020-12-02 12:09:12,315 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 12:09:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-02 12:09:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-12-02 12:09:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-02 12:09:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 290 transitions. [2020-12-02 12:09:12,329 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 290 transitions. Word has length 11 [2020-12-02 12:09:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,331 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 290 transitions. [2020-12-02 12:09:12,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:09:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 290 transitions. [2020-12-02 12:09:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:09:12,337 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:12,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:12,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:09:12,339 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash 253796715, now seen corresponding path program 1 times [2020-12-02 12:09:12,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:12,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544508808] [2020-12-02 12:09:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,406 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 12:09:12,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544508808] [2020-12-02 12:09:12,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:09:12,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150516834] [2020-12-02 12:09:12,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:09:12,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:09:12,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:09:12,414 INFO L87 Difference]: Start difference. First operand 136 states and 290 transitions. Second operand 5 states. [2020-12-02 12:09:12,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,453 INFO L93 Difference]: Finished difference Result 136 states and 267 transitions. [2020-12-02 12:09:12,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:09:12,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 12:09:12,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,455 INFO L225 Difference]: With dead ends: 136 [2020-12-02 12:09:12,455 INFO L226 Difference]: Without dead ends: 95 [2020-12-02 12:09:12,456 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 [2020-12-02 12:09:12,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-02 12:09:12,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-12-02 12:09:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-02 12:09:12,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 176 transitions. [2020-12-02 12:09:12,459 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 176 transitions. Word has length 12 [2020-12-02 12:09:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,460 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 176 transitions. [2020-12-02 12:09:12,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:09:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 176 transitions. [2020-12-02 12:09:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:09:12,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:12,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:12,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 12:09:12,461 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:12,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:12,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1566674326, now seen corresponding path program 1 times [2020-12-02 12:09:12,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:12,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587650402] [2020-12-02 12:09:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,526 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 12:09:12,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587650402] [2020-12-02 12:09:12,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:09:12,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980963751] [2020-12-02 12:09:12,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 12:09:12,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 12:09:12,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:09:12,532 INFO L87 Difference]: Start difference. First operand 95 states and 176 transitions. Second operand 3 states. [2020-12-02 12:09:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,548 INFO L93 Difference]: Finished difference Result 120 states and 214 transitions. [2020-12-02 12:09:12,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:09:12,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-02 12:09:12,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,549 INFO L225 Difference]: With dead ends: 120 [2020-12-02 12:09:12,549 INFO L226 Difference]: Without dead ends: 96 [2020-12-02 12:09:12,550 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 [2020-12-02 12:09:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-02 12:09:12,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2020-12-02 12:09:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-02 12:09:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 161 transitions. [2020-12-02 12:09:12,553 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 161 transitions. Word has length 13 [2020-12-02 12:09:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,554 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 161 transitions. [2020-12-02 12:09:12,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 12:09:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 161 transitions. [2020-12-02 12:09:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 12:09:12,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:12,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:12,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 12:09:12,555 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:12,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:12,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1569554417, now seen corresponding path program 1 times [2020-12-02 12:09:12,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:12,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439471364] [2020-12-02 12:09:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,631 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 12:09:12,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439471364] [2020-12-02 12:09:12,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:09:12,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984271993] [2020-12-02 12:09:12,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:09:12,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:09:12,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:09:12,633 INFO L87 Difference]: Start difference. First operand 89 states and 161 transitions. Second operand 6 states. [2020-12-02 12:09:12,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,675 INFO L93 Difference]: Finished difference Result 85 states and 151 transitions. [2020-12-02 12:09:12,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:09:12,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-02 12:09:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,676 INFO L225 Difference]: With dead ends: 85 [2020-12-02 12:09:12,676 INFO L226 Difference]: Without dead ends: 26 [2020-12-02 12:09:12,676 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 [2020-12-02 12:09:12,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-02 12:09:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-02 12:09:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-02 12:09:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-12-02 12:09:12,678 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 14 [2020-12-02 12:09:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,678 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-12-02 12:09:12,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:09:12,678 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-12-02 12:09:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 12:09:12,679 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:09:12,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:09:12,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 12:09:12,679 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:09:12,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:09:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash -974253196, now seen corresponding path program 1 times [2020-12-02 12:09:12,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:09:12,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850990548] [2020-12-02 12:09:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:09:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:09:12,722 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 12:09:12,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850990548] [2020-12-02 12:09:12,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:09:12,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:09:12,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009372702] [2020-12-02 12:09:12,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:09:12,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:09:12,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:09:12,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:09:12,724 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 4 states. [2020-12-02 12:09:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:09:12,734 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2020-12-02 12:09:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:09:12,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-02 12:09:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:09:12,735 INFO L225 Difference]: With dead ends: 25 [2020-12-02 12:09:12,735 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:09:12,735 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 12:09:12,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:09:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:09:12,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:09:12,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:09:12,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-02 12:09:12,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:09:12,736 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:09:12,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:09:12,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:09:12,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:09:12,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-02 12:09:12,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:09:12 BasicIcfg [2020-12-02 12:09:12,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:09:12,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:09:12,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:09:12,742 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:09:12,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:09:07" (3/4) ... [2020-12-02 12:09:12,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:09:12,754 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:09:12,754 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:09:12,754 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:09:12,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:09:12,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:09:12,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:09:12,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:09:12,809 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:09:12,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:09:12,811 INFO L168 Benchmark]: Toolchain (without parser) took 6882.94 ms. Allocated memory was 44.0 MB in the beginning and 119.5 MB in the end (delta: 75.5 MB). Free memory was 28.2 MB in the beginning and 62.2 MB in the end (delta: -34.0 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,812 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 24.6 MB in the beginning and 24.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:09:12,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 901.24 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.0 MB in the beginning and 30.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.10 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 28.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,813 INFO L168 Benchmark]: Boogie Preprocessor took 31.11 ms. Allocated memory is still 54.5 MB. Free memory was 28.5 MB in the beginning and 27.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,818 INFO L168 Benchmark]: RCFGBuilder took 493.47 ms. Allocated memory is still 54.5 MB. Free memory was 27.1 MB in the beginning and 33.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,819 INFO L168 Benchmark]: TraceAbstraction took 5314.39 ms. Allocated memory was 54.5 MB in the beginning and 119.5 MB in the end (delta: 65.0 MB). Free memory was 32.9 MB in the beginning and 65.3 MB in the end (delta: -32.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,822 INFO L168 Benchmark]: Witness Printer took 68.28 ms. Allocated memory is still 119.5 MB. Free memory was 65.3 MB in the beginning and 62.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:09:12,829 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 44.0 MB. Free memory was 24.6 MB in the beginning and 24.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 901.24 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.0 MB in the beginning and 30.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.10 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 28.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.11 ms. Allocated memory is still 54.5 MB. Free memory was 28.5 MB in the beginning and 27.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 493.47 ms. Allocated memory is still 54.5 MB. Free memory was 27.1 MB in the beginning and 33.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5314.39 ms. Allocated memory was 54.5 MB in the beginning and 119.5 MB in the end (delta: 65.0 MB). Free memory was 32.9 MB in the beginning and 65.3 MB in the end (delta: -32.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.28 ms. Allocated memory is still 119.5 MB. Free memory was 65.3 MB in the beginning and 62.2 MB in the end (delta: 3.1 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 812 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 55 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 80 PlacesBefore, 30 PlacesAfterwards, 72 TransitionsBefore, 21 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2267 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 4 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 176 SDtfs, 114 SDslu, 182 SDs, 0 SdLazy, 119 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 107 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 4345 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...