./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96f16385 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b4c46cabb1e98a4b19cf1c0b21c9fe25086175b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:05:29,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:05:29,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:05:29,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:05:29,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:05:29,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:05:29,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:05:29,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:05:29,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:05:29,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:05:29,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:05:29,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:05:29,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:05:29,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:05:29,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:05:29,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:05:29,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:05:29,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:05:29,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:05:29,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:05:29,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:05:29,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:05:29,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:05:29,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:05:29,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:05:29,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:05:29,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:05:29,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:05:29,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:05:29,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:05:29,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:05:29,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:05:29,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:05:29,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:05:29,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:05:29,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:05:29,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:05:29,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:05:29,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:05:29,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:05:29,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:05:29,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:05:29,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:05:29,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:05:29,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:05:29,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:05:29,252 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:05:29,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:05:29,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:05:29,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:05:29,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:05:29,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:05:29,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:05:29,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:05:29,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:05:29,256 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:05:29,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:05:29,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:05:29,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:05:29,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:05:29,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:05:29,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:05:29,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:05:29,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:05:29,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:05:29,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:05:29,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:05:29,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:05:29,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:05:29,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:05:29,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:05:29,260 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b4c46cabb1e98a4b19cf1c0b21c9fe25086175b [2020-12-02 12:05:29,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:05:29,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:05:29,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:05:29,715 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:05:29,717 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:05:29,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2020-12-02 12:05:29,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758eb3a93/63c86039c18a4c65b5ecda2f6cd705a8/FLAG976d14da6 [2020-12-02 12:05:30,658 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:05:30,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2020-12-02 12:05:30,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758eb3a93/63c86039c18a4c65b5ecda2f6cd705a8/FLAG976d14da6 [2020-12-02 12:05:30,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/758eb3a93/63c86039c18a4c65b5ecda2f6cd705a8 [2020-12-02 12:05:30,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:05:30,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:05:30,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:05:30,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:05:30,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:05:30,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:05:30" (1/1) ... [2020-12-02 12:05:30,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10445e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:30, skipping insertion in model container [2020-12-02 12:05:30,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:05:30" (1/1) ... [2020-12-02 12:05:30,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:05:30,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:05:31,121 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/safe003_tso.opt.i[949,962] [2020-12-02 12:05:31,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:05:31,321 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:05:31,337 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/safe003_tso.opt.i[949,962] [2020-12-02 12:05:31,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:05:31,521 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:05:31,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31 WrapperNode [2020-12-02 12:05:31,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:05:31,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:05:31,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:05:31,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:05:31,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:05:31,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:05:31,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:05:31,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:05:31,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (1/1) ... [2020-12-02 12:05:31,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:05:31,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:05:31,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:05:31,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:05:31,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (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 12:05:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:05:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:05:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:05:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:05:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:05:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:05:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:05:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:05:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:05:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:05:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:05:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:05:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:05:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:05:31,732 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 12:05:32,171 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:05:32,172 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:05:32,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:05:32 BoogieIcfgContainer [2020-12-02 12:05:32,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:05:32,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:05:32,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:05:32,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:05:32,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:05:30" (1/3) ... [2020-12-02 12:05:32,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4258fab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:05:32, skipping insertion in model container [2020-12-02 12:05:32,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:05:31" (2/3) ... [2020-12-02 12:05:32,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4258fab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:05:32, skipping insertion in model container [2020-12-02 12:05:32,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:05:32" (3/3) ... [2020-12-02 12:05:32,199 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2020-12-02 12:05:32,221 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:05:32,221 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:05:32,225 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:05:32,227 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:05:32,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,299 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:05:32,353 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:05:32,370 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:05:32,422 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:05:32,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:05:32,423 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:05:32,423 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:05:32,423 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:05:32,423 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:05:32,424 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:05:32,424 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:05:32,447 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:05:32,449 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-02 12:05:32,454 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-02 12:05:32,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-02 12:05:32,552 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-02 12:05:32,552 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:05:32,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-02 12:05:32,573 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-02 12:05:35,226 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-02 12:05:35,504 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-02 12:05:35,585 INFO L131 LiptonReduction]: Checked pairs total: 2653 [2020-12-02 12:05:35,586 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-02 12:05:35,591 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-02 12:05:35,623 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-02 12:05:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-02 12:05:35,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:05:35,632 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:05:35,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:05:35,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:05:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:05:35,640 INFO L82 PathProgramCache]: Analyzing trace with hash -991402129, now seen corresponding path program 1 times [2020-12-02 12:05:35,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:05:35,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501030574] [2020-12-02 12:05:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:05:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:05:35,838 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 12:05:35,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501030574] [2020-12-02 12:05:35,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:05:35,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:05:35,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308852569] [2020-12-02 12:05:35,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 12:05:35,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:05:35,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 12:05:35,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:05:35,876 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-02 12:05:35,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:05:35,929 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-02 12:05:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 12:05:35,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-02 12:05:35,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:05:35,960 INFO L225 Difference]: With dead ends: 362 [2020-12-02 12:05:35,961 INFO L226 Difference]: Without dead ends: 298 [2020-12-02 12:05:35,963 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 12:05:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-02 12:05:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-02 12:05:36,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-02 12:05:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-02 12:05:36,063 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-02 12:05:36,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:05:36,064 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-02 12:05:36,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 12:05:36,064 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-02 12:05:36,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:05:36,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:05:36,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:05:36,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:05:36,071 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:05:36,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:05:36,072 INFO L82 PathProgramCache]: Analyzing trace with hash -668714259, now seen corresponding path program 1 times [2020-12-02 12:05:36,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:05:36,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016298975] [2020-12-02 12:05:36,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:05:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:05:36,288 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 12:05:36,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016298975] [2020-12-02 12:05:36,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:05:36,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:05:36,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728939233] [2020-12-02 12:05:36,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:05:36,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:05:36,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:05:36,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:05:36,292 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-02 12:05:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:05:36,363 INFO L93 Difference]: Finished difference Result 591 states and 1623 transitions. [2020-12-02 12:05:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:05:36,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:05:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:05:36,367 INFO L225 Difference]: With dead ends: 591 [2020-12-02 12:05:36,367 INFO L226 Difference]: Without dead ends: 404 [2020-12-02 12:05:36,368 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 12:05:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-12-02 12:05:36,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 314. [2020-12-02 12:05:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-02 12:05:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 830 transitions. [2020-12-02 12:05:36,396 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 830 transitions. Word has length 9 [2020-12-02 12:05:36,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:05:36,396 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 830 transitions. [2020-12-02 12:05:36,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:05:36,396 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 830 transitions. [2020-12-02 12:05:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:05:36,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:05:36,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:05:36,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:05:36,398 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:05:36,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:05:36,399 INFO L82 PathProgramCache]: Analyzing trace with hash 39953638, now seen corresponding path program 1 times [2020-12-02 12:05:36,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:05:36,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039327903] [2020-12-02 12:05:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:05:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:05:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:05:36,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039327903] [2020-12-02 12:05:36,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:05:36,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:05:36,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225494666] [2020-12-02 12:05:36,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:05:36,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:05:36,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:05:36,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:05:36,512 INFO L87 Difference]: Start difference. First operand 314 states and 830 transitions. Second operand 4 states. [2020-12-02 12:05:36,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:05:36,538 INFO L93 Difference]: Finished difference Result 314 states and 785 transitions. [2020-12-02 12:05:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:05:36,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-02 12:05:36,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:05:36,541 INFO L225 Difference]: With dead ends: 314 [2020-12-02 12:05:36,541 INFO L226 Difference]: Without dead ends: 200 [2020-12-02 12:05:36,541 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 12:05:36,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-02 12:05:36,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2020-12-02 12:05:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-02 12:05:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 474 transitions. [2020-12-02 12:05:36,555 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 474 transitions. Word has length 10 [2020-12-02 12:05:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:05:36,556 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 474 transitions. [2020-12-02 12:05:36,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:05:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 474 transitions. [2020-12-02 12:05:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:05:36,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:05:36,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:05:36,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:05:36,559 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:05:36,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:05:36,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1622661680, now seen corresponding path program 1 times [2020-12-02 12:05:36,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:05:36,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316616948] [2020-12-02 12:05:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:05:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:05:36,709 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 12:05:36,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316616948] [2020-12-02 12:05:36,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:05:36,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:05:36,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963745345] [2020-12-02 12:05:36,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:05:36,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:05:36,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:05:36,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:05:36,712 INFO L87 Difference]: Start difference. First operand 192 states and 474 transitions. Second operand 5 states. [2020-12-02 12:05:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:05:36,771 INFO L93 Difference]: Finished difference Result 242 states and 579 transitions. [2020-12-02 12:05:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:05:36,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 12:05:36,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:05:36,777 INFO L225 Difference]: With dead ends: 242 [2020-12-02 12:05:36,777 INFO L226 Difference]: Without dead ends: 144 [2020-12-02 12:05:36,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:05:36,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-02 12:05:36,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-12-02 12:05:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-12-02 12:05:36,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 330 transitions. [2020-12-02 12:05:36,795 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 330 transitions. Word has length 12 [2020-12-02 12:05:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:05:36,798 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 330 transitions. [2020-12-02 12:05:36,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:05:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 330 transitions. [2020-12-02 12:05:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:05:36,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:05:36,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:05:36,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:05:36,803 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:05:36,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:05:36,805 INFO L82 PathProgramCache]: Analyzing trace with hash 538399929, now seen corresponding path program 1 times [2020-12-02 12:05:36,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:05:36,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636930098] [2020-12-02 12:05:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:05:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:05:36,904 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 12:05:36,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636930098] [2020-12-02 12:05:36,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:05:36,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 12:05:36,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339665715] [2020-12-02 12:05:36,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:05:36,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:05:36,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:05:36,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:05:36,907 INFO L87 Difference]: Start difference. First operand 144 states and 330 transitions. Second operand 6 states. [2020-12-02 12:05:37,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:05:37,010 INFO L93 Difference]: Finished difference Result 158 states and 347 transitions. [2020-12-02 12:05:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 12:05:37,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-02 12:05:37,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:05:37,012 INFO L225 Difference]: With dead ends: 158 [2020-12-02 12:05:37,012 INFO L226 Difference]: Without dead ends: 86 [2020-12-02 12:05:37,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-02 12:05:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-12-02 12:05:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2020-12-02 12:05:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-02 12:05:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 186 transitions. [2020-12-02 12:05:37,018 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 186 transitions. Word has length 13 [2020-12-02 12:05:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:05:37,018 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 186 transitions. [2020-12-02 12:05:37,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:05:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 186 transitions. [2020-12-02 12:05:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 12:05:37,020 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:05:37,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:05:37,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:05:37,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:05:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:05:37,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2064800307, now seen corresponding path program 1 times [2020-12-02 12:05:37,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:05:37,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619352076] [2020-12-02 12:05:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:05:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:05:37,154 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 12:05:37,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619352076] [2020-12-02 12:05:37,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:05:37,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:05:37,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151703921] [2020-12-02 12:05:37,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:05:37,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:05:37,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:05:37,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:05:37,158 INFO L87 Difference]: Start difference. First operand 84 states and 186 transitions. Second operand 5 states. [2020-12-02 12:05:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:05:37,201 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-12-02 12:05:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:05:37,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-02 12:05:37,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:05:37,202 INFO L225 Difference]: With dead ends: 72 [2020-12-02 12:05:37,202 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:05:37,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:05:37,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:05:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:05:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:05:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:05:37,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 12:05:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:05:37,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:05:37,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:05:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:05:37,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:05:37,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:05:37,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:05:37 BasicIcfg [2020-12-02 12:05:37,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:05:37,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:05:37,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:05:37,210 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:05:37,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:05:32" (3/4) ... [2020-12-02 12:05:37,215 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:05:37,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:05:37,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:05:37,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:05:37,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:05:37,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:05:37,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:05:37,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:05:37,302 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:05:37,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:05:37,308 INFO L168 Benchmark]: Toolchain (without parser) took 6433.29 ms. Allocated memory was 48.2 MB in the beginning and 127.9 MB in the end (delta: 79.7 MB). Free memory was 29.2 MB in the beginning and 82.4 MB in the end (delta: -53.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,308 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:05:37,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.96 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 36.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.83 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 35.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,313 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 58.7 MB. Free memory was 35.0 MB in the beginning and 33.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,313 INFO L168 Benchmark]: RCFGBuilder took 569.43 ms. Allocated memory is still 58.7 MB. Free memory was 33.5 MB in the beginning and 37.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,316 INFO L168 Benchmark]: TraceAbstraction took 5028.51 ms. Allocated memory was 58.7 MB in the beginning and 127.9 MB in the end (delta: 69.2 MB). Free memory was 37.1 MB in the beginning and 84.4 MB in the end (delta: -47.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,317 INFO L168 Benchmark]: Witness Printer took 92.65 ms. Allocated memory is still 127.9 MB. Free memory was 84.4 MB in the beginning and 82.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:05:37,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 650.96 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 36.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.83 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 35.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 58.7 MB. Free memory was 35.0 MB in the beginning and 33.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 569.43 ms. Allocated memory is still 58.7 MB. Free memory was 33.5 MB in the beginning and 37.5 MB in the end (delta: -4.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5028.51 ms. Allocated memory was 58.7 MB in the beginning and 127.9 MB in the end (delta: 69.2 MB). Free memory was 37.1 MB in the beginning and 84.4 MB in the end (delta: -47.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Witness Printer took 92.65 ms. Allocated memory is still 127.9 MB. Free memory was 84.4 MB in the beginning and 82.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 743 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2653 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 150 SDtfs, 144 SDslu, 197 SDs, 0 SdLazy, 72 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s 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, 6 MinimizatonAttempts, 100 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 3225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...