/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 13:14:33,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 13:14:33,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 13:14:33,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 13:14:33,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 13:14:33,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 13:14:33,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 13:14:33,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 13:14:33,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 13:14:33,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 13:14:33,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 13:14:33,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 13:14:33,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 13:14:33,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 13:14:33,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 13:14:33,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 13:14:33,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 13:14:33,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 13:14:33,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 13:14:33,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 13:14:33,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 13:14:33,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 13:14:33,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 13:14:33,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 13:14:33,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 13:14:33,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 13:14:33,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 13:14:33,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 13:14:33,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 13:14:33,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 13:14:33,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 13:14:33,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 13:14:33,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 13:14:33,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 13:14:33,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 13:14:33,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 13:14:33,688 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 13:14:33,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 13:14:33,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 13:14:33,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 13:14:33,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 13:14:33,712 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 13:14:33,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 13:14:33,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 13:14:33,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 13:14:33,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 13:14:33,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 13:14:33,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 13:14:33,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 13:14:33,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 13:14:33,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 13:14:33,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 13:14:33,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 13:14:33,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 13:14:33,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 13:14:33,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 13:14:33,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 13:14:33,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 13:14:33,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 13:14:33,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 13:14:33,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 13:14:33,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 13:14:33,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 13:14:33,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 13:14:33,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 13:14:33,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 13:14:33,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 13:14:33,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 13:14:34,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 13:14:34,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 13:14:34,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 13:14:34,022 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 13:14:34,023 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-10-11 13:14:34,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf0f72cf/5be4c19df6aa4a63b876a71466d41482/FLAG5fc6778d4 [2020-10-11 13:14:34,553 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 13:14:34,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-10-11 13:14:34,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf0f72cf/5be4c19df6aa4a63b876a71466d41482/FLAG5fc6778d4 [2020-10-11 13:14:34,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf0f72cf/5be4c19df6aa4a63b876a71466d41482 [2020-10-11 13:14:34,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 13:14:34,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 13:14:34,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 13:14:34,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 13:14:34,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 13:14:34,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:14:34" (1/1) ... [2020-10-11 13:14:34,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220d1a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:34, skipping insertion in model container [2020-10-11 13:14:34,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:14:34" (1/1) ... [2020-10-11 13:14:34,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 13:14:34,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 13:14:35,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:14:35,446 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 13:14:35,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:14:35,562 INFO L208 MainTranslator]: Completed translation [2020-10-11 13:14:35,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35 WrapperNode [2020-10-11 13:14:35,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 13:14:35,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 13:14:35,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 13:14:35,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 13:14:35,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 13:14:35,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 13:14:35,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 13:14:35,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 13:14:35,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (1/1) ... [2020-10-11 13:14:35,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 13:14:35,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 13:14:35,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 13:14:35,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 13:14:35,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (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 [2020-10-11 13:14:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 13:14:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 13:14:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-10-11 13:14:35,689 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-10-11 13:14:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 13:14:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 13:14:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 13:14:35,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 13:14:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-10-11 13:14:35,690 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-10-11 13:14:35,691 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 13:14:36,106 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 13:14:36,106 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-11 13:14:36,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:14:36 BoogieIcfgContainer [2020-10-11 13:14:36,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 13:14:36,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 13:14:36,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 13:14:36,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 13:14:36,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:14:34" (1/3) ... [2020-10-11 13:14:36,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74de0ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:14:36, skipping insertion in model container [2020-10-11 13:14:36,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:14:35" (2/3) ... [2020-10-11 13:14:36,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74de0ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:14:36, skipping insertion in model container [2020-10-11 13:14:36,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:14:36" (3/3) ... [2020-10-11 13:14:36,116 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-10-11 13:14:36,128 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 13:14:36,128 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 13:14:36,135 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 13:14:36,136 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 13:14:36,164 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,165 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,165 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,165 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,166 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,167 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,167 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,167 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,168 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,168 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,168 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,169 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,169 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,169 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,169 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,170 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,170 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,170 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,171 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,171 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,171 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,171 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,172 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,172 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,172 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,174 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,174 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,174 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,174 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,175 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,175 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,178 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,178 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,179 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,179 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,179 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,179 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,182 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,182 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,182 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,182 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,182 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,183 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,183 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,185 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,186 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,186 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,186 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,186 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,186 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,188 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,188 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,189 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,189 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,189 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,189 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,189 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:14:36,223 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-11 13:14:36,243 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:14:36,244 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:14:36,244 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:14:36,244 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:14:36,244 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:14:36,244 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:14:36,244 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:14:36,244 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:14:36,258 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:14:36,261 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 100 transitions, 268 flow [2020-10-11 13:14:36,264 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 100 transitions, 268 flow [2020-10-11 13:14:36,266 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 268 flow [2020-10-11 13:14:36,328 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2020-10-11 13:14:36,328 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-10-11 13:14:36,337 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 134 events. 19/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 333 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2020-10-11 13:14:36,344 INFO L117 LiptonReduction]: Number of co-enabled transitions 2448 [2020-10-11 13:14:37,829 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-11 13:14:38,019 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-11 13:14:38,129 INFO L132 LiptonReduction]: Checked pairs total: 13364 [2020-10-11 13:14:38,129 INFO L134 LiptonReduction]: Total number of compositions: 47 [2020-10-11 13:14:38,135 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 55 transitions, 178 flow [2020-10-11 13:14:38,422 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2020-10-11 13:14:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2020-10-11 13:14:38,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 13:14:38,433 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:14:38,434 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:14:38,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:14:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:14:38,442 INFO L82 PathProgramCache]: Analyzing trace with hash -808852904, now seen corresponding path program 1 times [2020-10-11 13:14:38,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:14:38,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177516597] [2020-10-11 13:14:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:14:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:14:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:14:38,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177516597] [2020-10-11 13:14:38,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:14:38,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:14:38,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365354760] [2020-10-11 13:14:38,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:14:38,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:14:38,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:14:38,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:14:38,765 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2020-10-11 13:14:39,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:14:39,075 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2020-10-11 13:14:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:14:39,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-11 13:14:39,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:14:39,161 INFO L225 Difference]: With dead ends: 9727 [2020-10-11 13:14:39,161 INFO L226 Difference]: Without dead ends: 7325 [2020-10-11 13:14:39,162 INFO L673 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 [2020-10-11 13:14:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2020-10-11 13:14:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2020-10-11 13:14:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2020-10-11 13:14:39,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2020-10-11 13:14:39,479 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2020-10-11 13:14:39,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:14:39,480 INFO L481 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2020-10-11 13:14:39,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:14:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2020-10-11 13:14:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:14:39,482 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:14:39,482 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:14:39,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 13:14:39,483 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:14:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:14:39,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1818149286, now seen corresponding path program 1 times [2020-10-11 13:14:39,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:14:39,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745434136] [2020-10-11 13:14:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:14:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:14:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:14:39,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745434136] [2020-10-11 13:14:39,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:14:39,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:14:39,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378932210] [2020-10-11 13:14:39,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:14:39,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:14:39,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:14:39,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:14:39,531 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 3 states. [2020-10-11 13:14:39,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:14:39,591 INFO L93 Difference]: Finished difference Result 3739 states and 11101 transitions. [2020-10-11 13:14:39,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:14:39,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 13:14:39,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:14:39,618 INFO L225 Difference]: With dead ends: 3739 [2020-10-11 13:14:39,619 INFO L226 Difference]: Without dead ends: 3707 [2020-10-11 13:14:39,619 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:14:39,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2020-10-11 13:14:39,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2020-10-11 13:14:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3707 states. [2020-10-11 13:14:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 11019 transitions. [2020-10-11 13:14:39,729 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 11019 transitions. Word has length 10 [2020-10-11 13:14:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:14:39,730 INFO L481 AbstractCegarLoop]: Abstraction has 3707 states and 11019 transitions. [2020-10-11 13:14:39,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:14:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 11019 transitions. [2020-10-11 13:14:39,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:14:39,731 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:14:39,731 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:14:39,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 13:14:39,732 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:14:39,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:14:39,732 INFO L82 PathProgramCache]: Analyzing trace with hash 154302258, now seen corresponding path program 2 times [2020-10-11 13:14:39,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:14:39,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244539668] [2020-10-11 13:14:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:14:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:14:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:14:39,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244539668] [2020-10-11 13:14:39,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:14:39,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:14:39,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228189885] [2020-10-11 13:14:39,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:14:39,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:14:39,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:14:39,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:14:39,776 INFO L87 Difference]: Start difference. First operand 3707 states and 11019 transitions. Second operand 4 states. [2020-10-11 13:14:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:14:39,820 INFO L93 Difference]: Finished difference Result 2696 states and 6489 transitions. [2020-10-11 13:14:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:14:39,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:14:39,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:14:39,835 INFO L225 Difference]: With dead ends: 2696 [2020-10-11 13:14:39,835 INFO L226 Difference]: Without dead ends: 2588 [2020-10-11 13:14:39,835 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:14:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2020-10-11 13:14:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2180. [2020-10-11 13:14:39,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-10-11 13:14:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2020-10-11 13:14:39,893 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2020-10-11 13:14:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:14:39,894 INFO L481 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2020-10-11 13:14:39,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:14:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2020-10-11 13:14:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 13:14:39,895 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:14:39,895 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:14:39,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 13:14:39,896 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:14:39,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:14:39,896 INFO L82 PathProgramCache]: Analyzing trace with hash 574663959, now seen corresponding path program 1 times [2020-10-11 13:14:39,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:14:39,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474935989] [2020-10-11 13:14:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:14:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:14:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:14:39,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474935989] [2020-10-11 13:14:39,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:14:39,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:14:39,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273741663] [2020-10-11 13:14:39,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:14:39,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:14:39,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:14:39,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:14:39,958 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2020-10-11 13:14:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:14:40,031 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2020-10-11 13:14:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:14:40,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 13:14:40,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:14:40,055 INFO L225 Difference]: With dead ends: 2507 [2020-10-11 13:14:40,055 INFO L226 Difference]: Without dead ends: 1814 [2020-10-11 13:14:40,060 INFO L673 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 [2020-10-11 13:14:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2020-10-11 13:14:40,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2020-10-11 13:14:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2020-10-11 13:14:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2020-10-11 13:14:40,103 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2020-10-11 13:14:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:14:40,105 INFO L481 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2020-10-11 13:14:40,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:14:40,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2020-10-11 13:14:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-11 13:14:40,109 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:14:40,109 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:14:40,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 13:14:40,110 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:14:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:14:40,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1296450119, now seen corresponding path program 1 times [2020-10-11 13:14:40,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:14:40,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636171357] [2020-10-11 13:14:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:14:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:14:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:14:40,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636171357] [2020-10-11 13:14:40,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:14:40,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 13:14:40,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156126601] [2020-10-11 13:14:40,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:14:40,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:14:40,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:14:40,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:14:40,231 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2020-10-11 13:14:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:14:40,281 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2020-10-11 13:14:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:14:40,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-11 13:14:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:14:40,292 INFO L225 Difference]: With dead ends: 1734 [2020-10-11 13:14:40,293 INFO L226 Difference]: Without dead ends: 1508 [2020-10-11 13:14:40,293 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:14:40,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-11 13:14:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2020-10-11 13:14:40,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-11 13:14:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2020-10-11 13:14:40,371 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2020-10-11 13:14:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:14:40,372 INFO L481 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2020-10-11 13:14:40,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:14:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2020-10-11 13:14:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-11 13:14:40,374 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:14:40,374 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:14:40,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 13:14:40,375 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 13:14:40,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:14:40,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1280173471, now seen corresponding path program 2 times [2020-10-11 13:14:40,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:14:40,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035630759] [2020-10-11 13:14:40,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:14:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:14:40,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:14:40,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035630759] [2020-10-11 13:14:40,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:14:40,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 13:14:40,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185919774] [2020-10-11 13:14:40,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 13:14:40,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:14:40,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 13:14:40,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:14:40,455 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2020-10-11 13:14:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:14:40,484 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2020-10-11 13:14:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:14:40,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-11 13:14:40,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:14:40,485 INFO L225 Difference]: With dead ends: 530 [2020-10-11 13:14:40,485 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 13:14:40,487 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 13:14:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 13:14:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 13:14:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 13:14:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 13:14:40,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-11 13:14:40,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:14:40,488 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 13:14:40,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 13:14:40,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 13:14:40,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 13:14:40,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 13:14:40,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:14:40 BasicIcfg [2020-10-11 13:14:40,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 13:14:40,495 INFO L168 Benchmark]: Toolchain (without parser) took 5664.82 ms. Allocated memory was 252.7 MB in the beginning and 424.7 MB in the end (delta: 172.0 MB). Free memory was 209.0 MB in the beginning and 355.4 MB in the end (delta: -146.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 14.2 GB. [2020-10-11 13:14:40,496 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-11 13:14:40,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.82 ms. Allocated memory was 252.7 MB in the beginning and 317.7 MB in the end (delta: 65.0 MB). Free memory was 209.0 MB in the beginning and 274.1 MB in the end (delta: -65.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. [2020-10-11 13:14:40,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 317.7 MB. Free memory was 274.1 MB in the beginning and 271.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 13:14:40,503 INFO L168 Benchmark]: Boogie Preprocessor took 24.81 ms. Allocated memory is still 317.7 MB. Free memory was 271.6 MB in the beginning and 270.7 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-11 13:14:40,504 INFO L168 Benchmark]: RCFGBuilder took 472.05 ms. Allocated memory is still 317.7 MB. Free memory was 270.7 MB in the beginning and 239.5 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 14.2 GB. [2020-10-11 13:14:40,505 INFO L168 Benchmark]: TraceAbstraction took 4382.50 ms. Allocated memory was 317.7 MB in the beginning and 424.7 MB in the end (delta: 107.0 MB). Free memory was 239.5 MB in the beginning and 355.4 MB in the end (delta: -115.9 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 13:14:40,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 252.7 MB. Free memory was 230.8 MB in the beginning and 229.9 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 732.82 ms. Allocated memory was 252.7 MB in the beginning and 317.7 MB in the end (delta: 65.0 MB). Free memory was 209.0 MB in the beginning and 274.1 MB in the end (delta: -65.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 317.7 MB. Free memory was 274.1 MB in the beginning and 271.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.81 ms. Allocated memory is still 317.7 MB. Free memory was 271.6 MB in the beginning and 270.7 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * RCFGBuilder took 472.05 ms. Allocated memory is still 317.7 MB. Free memory was 270.7 MB in the beginning and 239.5 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4382.50 ms. Allocated memory was 317.7 MB in the beginning and 424.7 MB in the end (delta: 107.0 MB). Free memory was 239.5 MB in the beginning and 355.4 MB in the end (delta: -115.9 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1748 VarBasedMoverChecksPositive, 64 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 52 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 637 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 99 PlacesBefore, 56 PlacesAfterwards, 100 TransitionsBefore, 55 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 47 TotalNumberOfCompositions, 13364 MoverChecksTotal - PositiveResult [Line: 700]: 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 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 436 SDtfs, 433 SDslu, 501 SDs, 0 SdLazy, 137 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4376occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 3863 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2186 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...