./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe027_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 a867433c875ea6727c2cf004441bbef7e177744a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 00:32:43,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:32:43,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:32:43,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:32:43,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:32:43,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:32:43,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:32:43,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:32:43,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:32:43,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:32:43,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:32:43,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:32:43,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:32:43,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:32:43,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:32:43,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:32:43,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:32:43,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:32:43,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:32:43,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:32:43,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:32:43,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:32:43,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:32:43,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:32:43,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:32:43,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:32:43,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:32:43,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:32:43,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:32:43,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:32:43,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:32:43,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:32:43,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:32:43,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:32:43,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:32:43,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:32:43,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:32:43,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:32:43,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:32:43,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:32:43,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:32:43,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:32:43,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:32:43,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:32:43,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:32:43,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:32:43,595 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:32:43,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:32:43,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:32:43,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:32:43,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:32:43,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:32:43,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:32:43,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:32:43,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:32:43,599 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:32:43,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:32:43,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:32:43,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:32:43,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:32:43,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:32:43,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:32:43,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:32:43,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:32:43,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:32:43,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:32:43,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:32:43,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:32:43,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:32:43,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:32:43,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:32:43,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a867433c875ea6727c2cf004441bbef7e177744a [2020-10-26 00:32:43,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:32:44,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:32:44,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:32:44,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:32:44,048 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:32:44,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i [2020-10-26 00:32:44,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7d99a94/4c4c831fdccc48d6b69158421bdf493e/FLAG02f05342c [2020-10-26 00:32:44,889 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:32:44,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_tso.opt.i [2020-10-26 00:32:44,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7d99a94/4c4c831fdccc48d6b69158421bdf493e/FLAG02f05342c [2020-10-26 00:32:45,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7d99a94/4c4c831fdccc48d6b69158421bdf493e [2020-10-26 00:32:45,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:32:45,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:32:45,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:32:45,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:32:45,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:32:45,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e5a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45, skipping insertion in model container [2020-10-26 00:32:45,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:32:45,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:32:45,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:32:45,675 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:32:45,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:32:45,830 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:32:45,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45 WrapperNode [2020-10-26 00:32:45,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:32:45,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:32:45,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:32:45,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:32:45,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:32:45,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:32:45,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:32:45,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:32:45,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... [2020-10-26 00:32:45,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:32:45,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:32:45,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:32:45,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:32:45,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:32:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:32:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-26 00:32:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:32:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:32:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-26 00:32:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-26 00:32:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-26 00:32:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-26 00:32:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-26 00:32:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-26 00:32:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-26 00:32:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-26 00:32:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:32:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-26 00:32:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:32:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:32:46,013 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-26 00:32:46,699 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:32:46,699 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 00:32:46,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:32:46 BoogieIcfgContainer [2020-10-26 00:32:46,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:32:46,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:32:46,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:32:46,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:32:46,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:32:45" (1/3) ... [2020-10-26 00:32:46,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779dbdfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:32:46, skipping insertion in model container [2020-10-26 00:32:46,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:32:45" (2/3) ... [2020-10-26 00:32:46,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779dbdfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:32:46, skipping insertion in model container [2020-10-26 00:32:46,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:32:46" (3/3) ... [2020-10-26 00:32:46,718 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-10-26 00:32:46,734 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:32:46,734 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:32:46,740 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 00:32:46,741 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:32:46,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,796 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,796 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,798 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,798 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,798 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,799 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,799 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,799 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,800 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,800 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,800 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,801 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,801 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,801 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,805 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,813 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,813 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,827 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:32:46,831 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-26 00:32:46,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 00:32:46,892 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:32:46,892 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:32:46,892 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:32:46,892 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:32:46,892 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:32:46,893 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:32:46,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:32:46,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:32:46,912 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:32:46,914 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-10-26 00:32:46,918 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-10-26 00:32:46,920 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-10-26 00:32:46,992 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-10-26 00:32:46,992 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-26 00:32:46,997 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-26 00:32:47,001 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-26 00:32:49,011 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-10-26 00:32:49,633 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-26 00:32:49,769 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-26 00:32:50,037 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-10-26 00:32:50,038 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-26 00:32:50,045 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-26 00:32:50,108 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-26 00:32:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-26 00:32:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 00:32:50,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:50,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:50,127 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:50,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:50,133 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-10-26 00:32:50,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:50,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320849327] [2020-10-26 00:32:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:50,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:50,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320849327] [2020-10-26 00:32:50,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:50,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:32:50,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787013915] [2020-10-26 00:32:50,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:32:50,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:50,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:32:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:32:50,459 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-26 00:32:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:50,533 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-26 00:32:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:32:50,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-26 00:32:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:50,574 INFO L225 Difference]: With dead ends: 670 [2020-10-26 00:32:50,574 INFO L226 Difference]: Without dead ends: 526 [2020-10-26 00:32:50,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:32:50,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-26 00:32:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-26 00:32:50,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-26 00:32:50,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-26 00:32:50,743 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-26 00:32:50,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:50,746 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-26 00:32:50,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:32:50,747 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-26 00:32:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 00:32:50,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:50,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:50,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:32:50,752 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:50,753 INFO L82 PathProgramCache]: Analyzing trace with hash 839232956, now seen corresponding path program 1 times [2020-10-26 00:32:50,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:50,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698809563] [2020-10-26 00:32:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:50,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698809563] [2020-10-26 00:32:50,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:50,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:32:50,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857025630] [2020-10-26 00:32:50,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:32:50,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:50,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:32:50,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:32:50,934 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-26 00:32:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:50,984 INFO L93 Difference]: Finished difference Result 634 states and 2040 transitions. [2020-10-26 00:32:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:32:50,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 00:32:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:50,993 INFO L225 Difference]: With dead ends: 634 [2020-10-26 00:32:50,993 INFO L226 Difference]: Without dead ends: 322 [2020-10-26 00:32:50,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:32:51,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-26 00:32:51,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-10-26 00:32:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-26 00:32:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 1008 transitions. [2020-10-26 00:32:51,050 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 1008 transitions. Word has length 11 [2020-10-26 00:32:51,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:51,051 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 1008 transitions. [2020-10-26 00:32:51,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:32:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1008 transitions. [2020-10-26 00:32:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 00:32:51,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:51,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:51,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:32:51,056 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:51,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1127842304, now seen corresponding path program 1 times [2020-10-26 00:32:51,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:51,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150045688] [2020-10-26 00:32:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:51,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150045688] [2020-10-26 00:32:51,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:51,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 00:32:51,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667383409] [2020-10-26 00:32:51,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:32:51,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:51,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:32:51,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:32:51,158 INFO L87 Difference]: Start difference. First operand 322 states and 1008 transitions. Second operand 3 states. [2020-10-26 00:32:51,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:51,183 INFO L93 Difference]: Finished difference Result 304 states and 939 transitions. [2020-10-26 00:32:51,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:32:51,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-26 00:32:51,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:51,187 INFO L225 Difference]: With dead ends: 304 [2020-10-26 00:32:51,189 INFO L226 Difference]: Without dead ends: 304 [2020-10-26 00:32:51,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:32:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-26 00:32:51,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-10-26 00:32:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-26 00:32:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 939 transitions. [2020-10-26 00:32:51,205 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 939 transitions. Word has length 12 [2020-10-26 00:32:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:51,205 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 939 transitions. [2020-10-26 00:32:51,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:32:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 939 transitions. [2020-10-26 00:32:51,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 00:32:51,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:51,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:51,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 00:32:51,214 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1624168671, now seen corresponding path program 1 times [2020-10-26 00:32:51,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:51,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887050245] [2020-10-26 00:32:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:51,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887050245] [2020-10-26 00:32:51,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:51,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:32:51,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700112639] [2020-10-26 00:32:51,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:32:51,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:51,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:32:51,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:32:51,302 INFO L87 Difference]: Start difference. First operand 304 states and 939 transitions. Second operand 4 states. [2020-10-26 00:32:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:51,331 INFO L93 Difference]: Finished difference Result 406 states and 1208 transitions. [2020-10-26 00:32:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:32:51,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 00:32:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:51,334 INFO L225 Difference]: With dead ends: 406 [2020-10-26 00:32:51,335 INFO L226 Difference]: Without dead ends: 226 [2020-10-26 00:32:51,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:32:51,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-26 00:32:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-26 00:32:51,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-26 00:32:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-10-26 00:32:51,345 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-10-26 00:32:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:51,346 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-10-26 00:32:51,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:32:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-10-26 00:32:51,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 00:32:51,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:51,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:51,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 00:32:51,347 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:51,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:51,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-10-26 00:32:51,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:51,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077976570] [2020-10-26 00:32:51,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:51,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077976570] [2020-10-26 00:32:51,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:51,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:32:51,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485826006] [2020-10-26 00:32:51,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:32:51,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:51,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:32:51,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:32:51,493 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 4 states. [2020-10-26 00:32:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:51,543 INFO L93 Difference]: Finished difference Result 287 states and 773 transitions. [2020-10-26 00:32:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 00:32:51,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-26 00:32:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:51,547 INFO L225 Difference]: With dead ends: 287 [2020-10-26 00:32:51,547 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 00:32:51,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:32:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 00:32:51,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 00:32:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 00:32:51,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 559 transitions. [2020-10-26 00:32:51,559 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 559 transitions. Word has length 14 [2020-10-26 00:32:51,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:51,560 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 559 transitions. [2020-10-26 00:32:51,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:32:51,561 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 559 transitions. [2020-10-26 00:32:51,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 00:32:51,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:51,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:51,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 00:32:51,563 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:51,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:51,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1148644205, now seen corresponding path program 1 times [2020-10-26 00:32:51,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:51,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216091487] [2020-10-26 00:32:51,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:51,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216091487] [2020-10-26 00:32:51,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:51,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:32:51,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421248358] [2020-10-26 00:32:51,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 00:32:51,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:51,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 00:32:51,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:32:51,642 INFO L87 Difference]: Start difference. First operand 206 states and 559 transitions. Second operand 5 states. [2020-10-26 00:32:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:51,699 INFO L93 Difference]: Finished difference Result 227 states and 565 transitions. [2020-10-26 00:32:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 00:32:51,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-26 00:32:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:51,702 INFO L225 Difference]: With dead ends: 227 [2020-10-26 00:32:51,702 INFO L226 Difference]: Without dead ends: 162 [2020-10-26 00:32:51,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:32:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-26 00:32:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-26 00:32:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-26 00:32:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-10-26 00:32:51,710 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 15 [2020-10-26 00:32:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:51,711 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-10-26 00:32:51,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 00:32:51,711 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-10-26 00:32:51,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-26 00:32:51,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:51,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:51,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 00:32:51,713 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:51,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-10-26 00:32:51,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:51,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376464734] [2020-10-26 00:32:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:51,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376464734] [2020-10-26 00:32:51,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:51,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 00:32:51,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315357763] [2020-10-26 00:32:51,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 00:32:51,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:51,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 00:32:51,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 00:32:51,811 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-10-26 00:32:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:51,900 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-10-26 00:32:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 00:32:51,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-26 00:32:51,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:51,902 INFO L225 Difference]: With dead ends: 158 [2020-10-26 00:32:51,903 INFO L226 Difference]: Without dead ends: 125 [2020-10-26 00:32:51,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:32:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-26 00:32:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-26 00:32:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-26 00:32:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-10-26 00:32:51,914 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-10-26 00:32:51,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:51,915 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-10-26 00:32:51,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 00:32:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-10-26 00:32:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 00:32:51,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:51,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:51,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 00:32:51,917 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:51,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:51,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-10-26 00:32:51,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:51,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99918208] [2020-10-26 00:32:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:52,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:52,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99918208] [2020-10-26 00:32:52,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:52,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 00:32:52,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572155145] [2020-10-26 00:32:52,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 00:32:52,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:52,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 00:32:52,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 00:32:52,067 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-10-26 00:32:52,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:52,150 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-10-26 00:32:52,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 00:32:52,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-26 00:32:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:52,153 INFO L225 Difference]: With dead ends: 120 [2020-10-26 00:32:52,153 INFO L226 Difference]: Without dead ends: 111 [2020-10-26 00:32:52,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 00:32:52,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-26 00:32:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-26 00:32:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-26 00:32:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-10-26 00:32:52,163 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-10-26 00:32:52,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:52,165 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-10-26 00:32:52,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 00:32:52,165 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-10-26 00:32:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 00:32:52,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:52,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:52,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 00:32:52,167 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:52,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:52,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-10-26 00:32:52,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:52,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534877025] [2020-10-26 00:32:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:52,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534877025] [2020-10-26 00:32:52,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:52,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:32:52,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375977142] [2020-10-26 00:32:52,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:32:52,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:32:52,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:32:52,221 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-10-26 00:32:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:52,241 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-10-26 00:32:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:32:52,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-26 00:32:52,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:52,243 INFO L225 Difference]: With dead ends: 144 [2020-10-26 00:32:52,243 INFO L226 Difference]: Without dead ends: 71 [2020-10-26 00:32:52,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:32:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-26 00:32:52,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-26 00:32:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-26 00:32:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-26 00:32:52,248 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-10-26 00:32:52,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:52,250 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-26 00:32:52,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:32:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-26 00:32:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 00:32:52,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:32:52,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:32:52,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 00:32:52,252 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 00:32:52,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:32:52,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-10-26 00:32:52,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:32:52,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122998996] [2020-10-26 00:32:52,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:32:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:32:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:32:52,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122998996] [2020-10-26 00:32:52,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:32:52,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 00:32:52,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073092737] [2020-10-26 00:32:52,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 00:32:52,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:32:52,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 00:32:52,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 00:32:52,291 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-26 00:32:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:32:52,305 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-26 00:32:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 00:32:52,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-26 00:32:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:32:52,306 INFO L225 Difference]: With dead ends: 70 [2020-10-26 00:32:52,306 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 00:32:52,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 00:32:52,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 00:32:52,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 00:32:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 00:32:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 00:32:52,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-26 00:32:52,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:32:52,309 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 00:32:52,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 00:32:52,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 00:32:52,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 00:32:52,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 00:32:52,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:32:52 BasicIcfg [2020-10-26 00:32:52,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:32:52,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:32:52,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:32:52,315 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:32:52,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:32:46" (3/4) ... [2020-10-26 00:32:52,320 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 00:32:52,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-26 00:32:52,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-26 00:32:52,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-26 00:32:52,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-10-26 00:32:52,342 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-10-26 00:32:52,343 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 00:32:52,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:32:52,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 00:32:52,394 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:32:52,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:32:52,397 INFO L168 Benchmark]: Toolchain (without parser) took 7277.28 ms. Allocated memory was 46.1 MB in the beginning and 127.9 MB in the end (delta: 81.8 MB). Free memory was 31.0 MB in the beginning and 51.6 MB in the end (delta: -20.7 MB). Peak memory consumption was 60.6 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,397 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 28.9 MB in the beginning and 28.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:32:52,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.67 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.3 MB in the beginning and 34.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.49 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 32.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,400 INFO L168 Benchmark]: Boogie Preprocessor took 31.71 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 30.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,401 INFO L168 Benchmark]: RCFGBuilder took 778.16 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 35.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,402 INFO L168 Benchmark]: TraceAbstraction took 5605.85 ms. Allocated memory was 56.6 MB in the beginning and 127.9 MB in the end (delta: 71.3 MB). Free memory was 34.7 MB in the beginning and 53.7 MB in the end (delta: -19.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,403 INFO L168 Benchmark]: Witness Printer took 79.90 ms. Allocated memory is still 127.9 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:32:52,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 28.9 MB in the beginning and 28.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 679.67 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.3 MB in the beginning and 34.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.49 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 32.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.71 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 30.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 778.16 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 35.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5605.85 ms. Allocated memory was 56.6 MB in the beginning and 127.9 MB in the end (delta: 71.3 MB). Free memory was 34.7 MB in the beginning and 53.7 MB in the end (delta: -19.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. * Witness Printer took 79.90 ms. Allocated memory is still 127.9 MB. Free memory was 53.7 MB in the beginning and 51.6 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 1383 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 112 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 209 SDtfs, 230 SDslu, 310 SDs, 0 SdLazy, 184 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 5985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...