./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.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/safe001_tso.oepc.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 75b6321658285c0e5c05d59d7bf40c5ba47b7cd7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:04:45,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:04:45,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:04:45,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:04:45,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:04:45,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:04:45,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:04:45,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:04:45,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:04:45,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:04:45,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:04:45,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:04:45,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:04:45,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:04:45,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:04:45,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:04:45,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:04:45,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:04:45,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:04:45,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:04:45,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:04:45,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:04:45,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:04:45,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:04:45,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:04:45,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:04:45,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:04:45,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:04:45,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:04:45,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:04:45,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:04:45,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:04:45,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:04:45,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:04:45,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:04:45,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:04:45,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:04:45,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:04:45,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:04:45,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:04:45,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:04:45,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:04:45,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:04:45,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:04:45,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:04:45,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:04:45,712 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:04:45,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:04:45,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:04:45,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:04:45,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:04:45,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:04:45,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:04:45,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:04:45,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:04:45,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:04:45,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:04:45,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:04:45,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:04:45,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:04:45,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:04:45,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:04:45,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:04:45,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:04:45,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:04:45,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:04:45,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:04:45,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:04:45,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:04:45,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:04:45,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:04:45,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b6321658285c0e5c05d59d7bf40c5ba47b7cd7 [2020-12-02 12:04:46,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:04:46,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:04:46,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:04:46,236 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:04:46,237 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:04:46,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2020-12-02 12:04:46,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac44ceb3/72cb010bced941b8b5a657f7bdf7731d/FLAG8168acd10 [2020-12-02 12:04:47,155 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:04:47,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2020-12-02 12:04:47,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac44ceb3/72cb010bced941b8b5a657f7bdf7731d/FLAG8168acd10 [2020-12-02 12:04:47,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ac44ceb3/72cb010bced941b8b5a657f7bdf7731d [2020-12-02 12:04:47,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:04:47,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:04:47,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:04:47,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:04:47,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:04:47,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:47" (1/1) ... [2020-12-02 12:04:47,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d768e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:47, skipping insertion in model container [2020-12-02 12:04:47,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:47" (1/1) ... [2020-12-02 12:04:47,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:04:47,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:04:47,671 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/safe001_tso.oepc.i[950,963] [2020-12-02 12:04:47,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:04:47,923 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:04:47,942 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/safe001_tso.oepc.i[950,963] [2020-12-02 12:04:48,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:04:48,104 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:04:48,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48 WrapperNode [2020-12-02 12:04:48,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:04:48,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:04:48,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:04:48,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:04:48,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:04:48,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:04:48,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:04:48,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:04:48,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (1/1) ... [2020-12-02 12:04:48,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:04:48,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:04:48,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:04:48,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:04:48,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (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 12:04:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:04:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:04:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:04:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:04:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:04:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:04:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:04:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:04:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:04:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:04:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:04:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:04:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:04:48,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:04:48,324 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 12:04:48,722 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:04:48,722 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:04:48,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:48 BoogieIcfgContainer [2020-12-02 12:04:48,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:04:48,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:04:48,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:04:48,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:04:48,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:04:47" (1/3) ... [2020-12-02 12:04:48,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b1a33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:48, skipping insertion in model container [2020-12-02 12:04:48,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:48" (2/3) ... [2020-12-02 12:04:48,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b1a33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:48, skipping insertion in model container [2020-12-02 12:04:48,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:48" (3/3) ... [2020-12-02 12:04:48,736 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-12-02 12:04:48,778 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:04:48,778 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:04:48,781 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:04:48,782 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:04:48,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,826 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,826 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,826 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,827 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,828 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,829 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,829 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,829 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,829 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,830 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,830 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,831 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,831 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,844 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,845 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:04:48,847 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:04:48,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:04:48,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:04:48,896 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:04:48,896 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:04:48,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:04:48,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:04:48,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:04:48,903 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:04:48,903 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:04:48,925 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:04:48,928 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-02 12:04:48,932 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-02 12:04:48,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2020-12-02 12:04:49,019 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2020-12-02 12:04:49,020 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:04:49,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-02 12:04:49,027 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-02 12:04:51,861 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-02 12:04:52,170 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-02 12:04:52,289 INFO L131 LiptonReduction]: Checked pairs total: 2466 [2020-12-02 12:04:52,290 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-02 12:04:52,297 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-02 12:04:52,329 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-02 12:04:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-02 12:04:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:04:52,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:52,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:52,341 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:52,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1644080523, now seen corresponding path program 1 times [2020-12-02 12:04:52,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:52,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084561555] [2020-12-02 12:04:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:52,561 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 12:04:52,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084561555] [2020-12-02 12:04:52,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:52,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:04:52,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000105728] [2020-12-02 12:04:52,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 12:04:52,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:52,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 12:04:52,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:04:52,589 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-02 12:04:52,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:52,629 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-02 12:04:52,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 12:04:52,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-02 12:04:52,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:52,653 INFO L225 Difference]: With dead ends: 362 [2020-12-02 12:04:52,653 INFO L226 Difference]: Without dead ends: 298 [2020-12-02 12:04:52,655 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 12:04:52,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-02 12:04:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-02 12:04:52,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-02 12:04:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-02 12:04:52,753 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-02 12:04:52,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:52,756 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-02 12:04:52,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 12:04:52,756 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-02 12:04:52,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:04:52,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:52,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:52,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:04:52,760 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:52,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:52,766 INFO L82 PathProgramCache]: Analyzing trace with hash 573104580, now seen corresponding path program 1 times [2020-12-02 12:04:52,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:52,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776069486] [2020-12-02 12:04:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:52,942 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 12:04:52,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776069486] [2020-12-02 12:04:52,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:52,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:04:52,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689158200] [2020-12-02 12:04:52,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:04:52,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:52,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:04:52,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:04:52,953 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-02 12:04:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:53,030 INFO L93 Difference]: Finished difference Result 541 states and 1484 transitions. [2020-12-02 12:04:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:04:53,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:04:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:53,036 INFO L225 Difference]: With dead ends: 541 [2020-12-02 12:04:53,036 INFO L226 Difference]: Without dead ends: 410 [2020-12-02 12:04:53,037 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 12:04:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-12-02 12:04:53,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 340. [2020-12-02 12:04:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-12-02 12:04:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 937 transitions. [2020-12-02 12:04:53,067 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 937 transitions. Word has length 9 [2020-12-02 12:04:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:53,068 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 937 transitions. [2020-12-02 12:04:53,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:04:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 937 transitions. [2020-12-02 12:04:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:04:53,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:53,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:53,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:04:53,070 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:53,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:53,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1603605898, now seen corresponding path program 1 times [2020-12-02 12:04:53,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:53,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463662299] [2020-12-02 12:04:53,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:53,225 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 12:04:53,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463662299] [2020-12-02 12:04:53,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:53,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:04:53,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100446312] [2020-12-02 12:04:53,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:04:53,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:53,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:04:53,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:53,233 INFO L87 Difference]: Start difference. First operand 340 states and 937 transitions. Second operand 5 states. [2020-12-02 12:04:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:53,300 INFO L93 Difference]: Finished difference Result 455 states and 1174 transitions. [2020-12-02 12:04:53,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:04:53,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-02 12:04:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:53,306 INFO L225 Difference]: With dead ends: 455 [2020-12-02 12:04:53,306 INFO L226 Difference]: Without dead ends: 366 [2020-12-02 12:04:53,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:04:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-12-02 12:04:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 294. [2020-12-02 12:04:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-12-02 12:04:53,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 797 transitions. [2020-12-02 12:04:53,328 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 797 transitions. Word has length 10 [2020-12-02 12:04:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:53,328 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 797 transitions. [2020-12-02 12:04:53,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:04:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 797 transitions. [2020-12-02 12:04:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 12:04:53,331 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:53,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:53,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:04:53,332 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:53,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:53,332 INFO L82 PathProgramCache]: Analyzing trace with hash 996933044, now seen corresponding path program 1 times [2020-12-02 12:04:53,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:53,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737884098] [2020-12-02 12:04:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:53,404 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 12:04:53,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737884098] [2020-12-02 12:04:53,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:53,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:04:53,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252970695] [2020-12-02 12:04:53,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:04:53,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:53,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:04:53,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:53,410 INFO L87 Difference]: Start difference. First operand 294 states and 797 transitions. Second operand 5 states. [2020-12-02 12:04:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:53,477 INFO L93 Difference]: Finished difference Result 410 states and 1048 transitions. [2020-12-02 12:04:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:04:53,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-02 12:04:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:53,481 INFO L225 Difference]: With dead ends: 410 [2020-12-02 12:04:53,495 INFO L226 Difference]: Without dead ends: 344 [2020-12-02 12:04:53,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:04:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-12-02 12:04:53,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 278. [2020-12-02 12:04:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-12-02 12:04:53,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 742 transitions. [2020-12-02 12:04:53,510 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 742 transitions. Word has length 11 [2020-12-02 12:04:53,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:53,510 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 742 transitions. [2020-12-02 12:04:53,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:04:53,511 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 742 transitions. [2020-12-02 12:04:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 12:04:53,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:53,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:53,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:04:53,514 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:53,515 INFO L82 PathProgramCache]: Analyzing trace with hash 996952264, now seen corresponding path program 1 times [2020-12-02 12:04:53,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:53,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669010618] [2020-12-02 12:04:53,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:53,585 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 12:04:53,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669010618] [2020-12-02 12:04:53,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:53,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:04:53,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186462961] [2020-12-02 12:04:53,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:04:53,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:53,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:04:53,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:53,588 INFO L87 Difference]: Start difference. First operand 278 states and 742 transitions. Second operand 5 states. [2020-12-02 12:04:53,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:53,643 INFO L93 Difference]: Finished difference Result 372 states and 946 transitions. [2020-12-02 12:04:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:04:53,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-02 12:04:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:53,650 INFO L225 Difference]: With dead ends: 372 [2020-12-02 12:04:53,650 INFO L226 Difference]: Without dead ends: 318 [2020-12-02 12:04:53,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:04:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-12-02 12:04:53,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 250. [2020-12-02 12:04:53,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-12-02 12:04:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 657 transitions. [2020-12-02 12:04:53,662 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 657 transitions. Word has length 11 [2020-12-02 12:04:53,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:53,663 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 657 transitions. [2020-12-02 12:04:53,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:04:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 657 transitions. [2020-12-02 12:04:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:04:53,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:53,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:53,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:04:53,666 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:53,666 INFO L82 PathProgramCache]: Analyzing trace with hash -828726514, now seen corresponding path program 1 times [2020-12-02 12:04:53,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:53,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083022049] [2020-12-02 12:04:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:53,758 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 12:04:53,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083022049] [2020-12-02 12:04:53,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:53,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:04:53,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508126458] [2020-12-02 12:04:53,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:04:53,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:53,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:04:53,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:53,764 INFO L87 Difference]: Start difference. First operand 250 states and 657 transitions. Second operand 5 states. [2020-12-02 12:04:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:53,824 INFO L93 Difference]: Finished difference Result 335 states and 834 transitions. [2020-12-02 12:04:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:04:53,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 12:04:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:53,827 INFO L225 Difference]: With dead ends: 335 [2020-12-02 12:04:53,827 INFO L226 Difference]: Without dead ends: 292 [2020-12-02 12:04:53,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:04:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-12-02 12:04:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 238. [2020-12-02 12:04:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-12-02 12:04:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 616 transitions. [2020-12-02 12:04:53,838 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 616 transitions. Word has length 12 [2020-12-02 12:04:53,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:53,839 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 616 transitions. [2020-12-02 12:04:53,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:04:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 616 transitions. [2020-12-02 12:04:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:04:53,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:53,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:53,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:04:53,841 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:53,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:53,843 INFO L82 PathProgramCache]: Analyzing trace with hash 796278870, now seen corresponding path program 1 times [2020-12-02 12:04:53,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:53,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124965536] [2020-12-02 12:04:53,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:53,954 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 12:04:53,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124965536] [2020-12-02 12:04:53,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:53,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:04:53,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949070945] [2020-12-02 12:04:53,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:04:53,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:53,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:04:53,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:04:53,958 INFO L87 Difference]: Start difference. First operand 238 states and 616 transitions. Second operand 6 states. [2020-12-02 12:04:54,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,028 INFO L93 Difference]: Finished difference Result 368 states and 909 transitions. [2020-12-02 12:04:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:04:54,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-02 12:04:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,032 INFO L225 Difference]: With dead ends: 368 [2020-12-02 12:04:54,032 INFO L226 Difference]: Without dead ends: 212 [2020-12-02 12:04:54,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:04:54,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-02 12:04:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 180. [2020-12-02 12:04:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-02 12:04:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-12-02 12:04:54,041 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 13 [2020-12-02 12:04:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,042 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-12-02 12:04:54,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:04:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-12-02 12:04:54,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:04:54,043 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:54,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:54,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 12:04:54,043 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:54,044 INFO L82 PathProgramCache]: Analyzing trace with hash 274334134, now seen corresponding path program 1 times [2020-12-02 12:04:54,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:54,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497175667] [2020-12-02 12:04:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:54,143 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 12:04:54,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497175667] [2020-12-02 12:04:54,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:54,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:04:54,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981026367] [2020-12-02 12:04:54,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:04:54,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:54,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:04:54,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:04:54,147 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 6 states. [2020-12-02 12:04:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,196 INFO L93 Difference]: Finished difference Result 256 states and 608 transitions. [2020-12-02 12:04:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:04:54,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-02 12:04:54,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,198 INFO L225 Difference]: With dead ends: 256 [2020-12-02 12:04:54,198 INFO L226 Difference]: Without dead ends: 148 [2020-12-02 12:04:54,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:04:54,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-02 12:04:54,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 132. [2020-12-02 12:04:54,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-02 12:04:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 316 transitions. [2020-12-02 12:04:54,205 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 316 transitions. Word has length 13 [2020-12-02 12:04:54,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,205 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 316 transitions. [2020-12-02 12:04:54,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:04:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 316 transitions. [2020-12-02 12:04:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:04:54,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:54,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:54,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 12:04:54,207 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:54,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:54,207 INFO L82 PathProgramCache]: Analyzing trace with hash 383190448, now seen corresponding path program 1 times [2020-12-02 12:04:54,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:54,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463431143] [2020-12-02 12:04:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:54,278 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 12:04:54,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463431143] [2020-12-02 12:04:54,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:54,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:04:54,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962161605] [2020-12-02 12:04:54,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:04:54,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:54,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:04:54,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:54,282 INFO L87 Difference]: Start difference. First operand 132 states and 316 transitions. Second operand 5 states. [2020-12-02 12:04:54,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,326 INFO L93 Difference]: Finished difference Result 162 states and 361 transitions. [2020-12-02 12:04:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:04:54,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-02 12:04:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,328 INFO L225 Difference]: With dead ends: 162 [2020-12-02 12:04:54,328 INFO L226 Difference]: Without dead ends: 136 [2020-12-02 12:04:54,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:04:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-02 12:04:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 116. [2020-12-02 12:04:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-12-02 12:04:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 270 transitions. [2020-12-02 12:04:54,334 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 270 transitions. Word has length 13 [2020-12-02 12:04:54,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,334 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 270 transitions. [2020-12-02 12:04:54,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:04:54,334 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 270 transitions. [2020-12-02 12:04:54,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 12:04:54,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:54,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:54,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 12:04:54,336 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:54,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:54,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1006670732, now seen corresponding path program 1 times [2020-12-02 12:04:54,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:54,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531632513] [2020-12-02 12:04:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:54,376 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 12:04:54,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531632513] [2020-12-02 12:04:54,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:54,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:04:54,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431055437] [2020-12-02 12:04:54,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:04:54,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:54,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:04:54,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:04:54,379 INFO L87 Difference]: Start difference. First operand 116 states and 270 transitions. Second operand 4 states. [2020-12-02 12:04:54,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,405 INFO L93 Difference]: Finished difference Result 135 states and 288 transitions. [2020-12-02 12:04:54,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:04:54,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-02 12:04:54,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,407 INFO L225 Difference]: With dead ends: 135 [2020-12-02 12:04:54,407 INFO L226 Difference]: Without dead ends: 101 [2020-12-02 12:04:54,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:54,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-02 12:04:54,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-02 12:04:54,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-02 12:04:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 215 transitions. [2020-12-02 12:04:54,412 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 215 transitions. Word has length 14 [2020-12-02 12:04:54,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,412 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 215 transitions. [2020-12-02 12:04:54,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:04:54,413 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 215 transitions. [2020-12-02 12:04:54,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 12:04:54,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:54,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:54,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-02 12:04:54,414 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:54,415 INFO L82 PathProgramCache]: Analyzing trace with hash 48994457, now seen corresponding path program 1 times [2020-12-02 12:04:54,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:54,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154014285] [2020-12-02 12:04:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:54,473 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 12:04:54,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154014285] [2020-12-02 12:04:54,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:54,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:04:54,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102403210] [2020-12-02 12:04:54,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:04:54,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:54,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:04:54,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:54,476 INFO L87 Difference]: Start difference. First operand 101 states and 215 transitions. Second operand 5 states. [2020-12-02 12:04:54,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,518 INFO L93 Difference]: Finished difference Result 99 states and 191 transitions. [2020-12-02 12:04:54,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:04:54,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-02 12:04:54,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,520 INFO L225 Difference]: With dead ends: 99 [2020-12-02 12:04:54,520 INFO L226 Difference]: Without dead ends: 76 [2020-12-02 12:04:54,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 12:04:54,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-02 12:04:54,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-02 12:04:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-02 12:04:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 142 transitions. [2020-12-02 12:04:54,526 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 142 transitions. Word has length 15 [2020-12-02 12:04:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,528 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 142 transitions. [2020-12-02 12:04:54,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:04:54,529 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 142 transitions. [2020-12-02 12:04:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 12:04:54,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:54,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:54,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-02 12:04:54,530 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:54,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:54,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1602840682, now seen corresponding path program 1 times [2020-12-02 12:04:54,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:54,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394256882] [2020-12-02 12:04:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:54,588 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 12:04:54,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394256882] [2020-12-02 12:04:54,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:54,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 12:04:54,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817226645] [2020-12-02 12:04:54,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:04:54,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:54,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:04:54,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:04:54,591 INFO L87 Difference]: Start difference. First operand 76 states and 142 transitions. Second operand 6 states. [2020-12-02 12:04:54,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,646 INFO L93 Difference]: Finished difference Result 69 states and 126 transitions. [2020-12-02 12:04:54,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:04:54,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-02 12:04:54,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,649 INFO L225 Difference]: With dead ends: 69 [2020-12-02 12:04:54,649 INFO L226 Difference]: Without dead ends: 53 [2020-12-02 12:04:54,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 12:04:54,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-02 12:04:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-02 12:04:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-02 12:04:54,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 97 transitions. [2020-12-02 12:04:54,653 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 97 transitions. Word has length 16 [2020-12-02 12:04:54,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,653 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 97 transitions. [2020-12-02 12:04:54,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:04:54,653 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2020-12-02 12:04:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:04:54,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:04:54,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:04:54,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-02 12:04:54,654 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:04:54,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:04:54,655 INFO L82 PathProgramCache]: Analyzing trace with hash 202097967, now seen corresponding path program 1 times [2020-12-02 12:04:54,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:04:54,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745895894] [2020-12-02 12:04:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:04:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:04:54,727 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 12:04:54,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745895894] [2020-12-02 12:04:54,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:04:54,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:04:54,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969174821] [2020-12-02 12:04:54,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:04:54,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:04:54,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:04:54,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:04:54,730 INFO L87 Difference]: Start difference. First operand 53 states and 97 transitions. Second operand 4 states. [2020-12-02 12:04:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:04:54,742 INFO L93 Difference]: Finished difference Result 52 states and 96 transitions. [2020-12-02 12:04:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:04:54,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-02 12:04:54,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:04:54,743 INFO L225 Difference]: With dead ends: 52 [2020-12-02 12:04:54,743 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:04:54,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:04:54,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:04:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:04:54,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:04:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:04:54,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-02 12:04:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:04:54,745 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:04:54,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:04:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:04:54,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:04:54,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-02 12:04:54,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:04:54 BasicIcfg [2020-12-02 12:04:54,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:04:54,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:04:54,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:04:54,751 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:04:54,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:48" (3/4) ... [2020-12-02 12:04:54,756 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:04:54,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:04:54,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:04:54,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:04:54,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:04:54,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:04:54,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:04:54,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:04:54,813 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:04:54,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:04:54,814 INFO L168 Benchmark]: Toolchain (without parser) took 7453.01 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 32.3 MB in the beginning and 59.2 MB in the end (delta: -26.9 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-12-02 12:04:54,815 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:04:54,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.64 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 26.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-12-02 12:04:54,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.21 ms. Allocated memory is still 56.6 MB. Free memory was 26.5 MB in the beginning and 38.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-12-02 12:04:54,817 INFO L168 Benchmark]: Boogie Preprocessor took 29.12 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 37.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:04:54,818 INFO L168 Benchmark]: RCFGBuilder took 509.08 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.3 MB in the beginning and 42.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-12-02 12:04:54,818 INFO L168 Benchmark]: TraceAbstraction took 6022.30 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 41.8 MB in the beginning and 62.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-02 12:04:54,819 INFO L168 Benchmark]: Witness Printer took 62.80 ms. Allocated memory is still 121.6 MB. Free memory was 62.3 MB in the beginning and 59.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:04:54,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 742.64 ms. Allocated memory is still 56.6 MB. Free memory was 32.2 MB in the beginning and 26.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.21 ms. Allocated memory is still 56.6 MB. Free memory was 26.5 MB in the beginning and 38.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.12 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 37.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 509.08 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.3 MB in the beginning and 42.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6022.30 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 41.8 MB in the beginning and 62.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 62.80 ms. Allocated memory is still 121.6 MB. Free memory was 62.3 MB in the beginning and 59.2 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 781 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 57 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2466 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, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 302 SDtfs, 320 SDslu, 515 SDs, 0 SdLazy, 234 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 13 MinimizatonAttempts, 398 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 7208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...