/usr/bin/java -Xmx8000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:55:34,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:55:34,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:55:34,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:55:34,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:55:34,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:55:34,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:55:34,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:55:34,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:55:34,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:55:34,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:55:34,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:55:34,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:55:34,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:55:34,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:55:34,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:55:34,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:55:34,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:55:34,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:55:34,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:55:34,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:55:34,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:55:34,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:55:34,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:55:34,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 03:55:34,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:55:34,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:55:34,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:55:34,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:55:34,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:55:34,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:55:34,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:55:34,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:55:34,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:55:34,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:55:34,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:55:34,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 03:55:34,900 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:55:34,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:55:34,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:55:34,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:55:34,903 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:55:34,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:55:34,904 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:55:34,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:55:34,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:55:34,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:55:34,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:55:34,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:55:34,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:55:34,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:55:34,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:55:34,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:55:34,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:55:34,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:55:34,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:55:34,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:55:34,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:55:34,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:55:34,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:55:34,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:55:34,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:55:34,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:55:34,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:55:34,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:55:34,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:55:35,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:55:35,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:55:35,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:55:35,208 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:55:35,208 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:55:35,209 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 03:55:35,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cede10ff1/46b24d9337c7496d9c04a96fec03a932/FLAG881a5274e [2019-12-27 03:55:35,831 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:55:35,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 03:55:35,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cede10ff1/46b24d9337c7496d9c04a96fec03a932/FLAG881a5274e [2019-12-27 03:55:36,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cede10ff1/46b24d9337c7496d9c04a96fec03a932 [2019-12-27 03:55:36,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:55:36,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:55:36,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:55:36,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:55:36,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:55:36,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727e516d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36, skipping insertion in model container [2019-12-27 03:55:36,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:55:36,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:55:36,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:55:36,616 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:55:36,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:55:36,740 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:55:36,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36 WrapperNode [2019-12-27 03:55:36,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:55:36,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:55:36,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:55:36,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:55:36,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:55:36,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:55:36,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:55:36,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:55:36,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (1/1) ... [2019-12-27 03:55:36,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:55:36,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:55:36,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:55:36,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:55:36,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (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 [2019-12-27 03:55:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:55:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:55:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:55:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:55:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:55:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:55:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:55:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:55:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:55:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:55:36,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:55:36,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:55:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:55:36,901 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:55:37,276 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:55:37,276 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:55:37,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:55:37 BoogieIcfgContainer [2019-12-27 03:55:37,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:55:37,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:55:37,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:55:37,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:55:37,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:55:36" (1/3) ... [2019-12-27 03:55:37,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a61eea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:55:37, skipping insertion in model container [2019-12-27 03:55:37,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:55:36" (2/3) ... [2019-12-27 03:55:37,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a61eea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:55:37, skipping insertion in model container [2019-12-27 03:55:37,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:55:37" (3/3) ... [2019-12-27 03:55:37,286 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-12-27 03:55:37,295 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:55:37,295 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:55:37,303 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:55:37,304 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:55:37,334 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,334 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,334 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,335 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,335 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,335 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,336 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,336 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,336 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,337 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,337 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,337 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,338 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,338 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,338 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,339 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,339 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,339 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,343 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,344 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,344 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,344 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,362 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,362 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,366 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,367 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,367 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,367 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:55:37,384 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:55:37,405 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:55:37,405 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:55:37,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:55:37,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:55:37,406 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:55:37,406 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:55:37,406 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:55:37,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:55:37,421 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 03:55:37,423 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 03:55:37,470 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 03:55:37,470 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:55:37,477 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:55:37,480 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 03:55:37,510 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 03:55:37,511 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:55:37,513 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:55:37,516 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:55:37,518 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:55:38,953 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-12-27 03:55:39,104 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 03:55:39,105 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 03:55:39,108 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 03:55:39,119 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 03:55:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 03:55:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:55:39,128 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:39,129 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:39,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:39,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:39,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 03:55:39,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:39,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023864068] [2019-12-27 03:55:39,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:39,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023864068] [2019-12-27 03:55:39,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:39,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:55:39,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927643451] [2019-12-27 03:55:39,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:55:39,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:39,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:55:39,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:55:39,391 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 03:55:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:39,421 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 03:55:39,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:55:39,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:55:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:39,441 INFO L225 Difference]: With dead ends: 52 [2019-12-27 03:55:39,441 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 03:55:39,442 INFO L631 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 [2019-12-27 03:55:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 03:55:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 03:55:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 03:55:39,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 03:55:39,480 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 03:55:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:39,481 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 03:55:39,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:55:39,481 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 03:55:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:55:39,482 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:39,482 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:39,484 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:39,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:39,484 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 03:55:39,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:39,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339818913] [2019-12-27 03:55:39,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:39,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339818913] [2019-12-27 03:55:39,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:39,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:55:39,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014298404] [2019-12-27 03:55:39,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:55:39,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:39,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:55:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:55:39,603 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 03:55:39,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:39,621 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-27 03:55:39,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:55:39,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 03:55:39,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:39,623 INFO L225 Difference]: With dead ends: 42 [2019-12-27 03:55:39,623 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 03:55:39,624 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:55:39,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 03:55:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 03:55:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:55:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-27 03:55:39,631 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-27 03:55:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:39,631 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-27 03:55:39,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:55:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-27 03:55:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:55:39,632 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:39,632 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:39,632 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:39,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:39,633 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-27 03:55:39,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:39,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398761596] [2019-12-27 03:55:39,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:39,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398761596] [2019-12-27 03:55:39,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:39,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:55:39,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237831256] [2019-12-27 03:55:39,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:55:39,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:39,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:55:39,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:55:39,686 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-27 03:55:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:39,696 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 03:55:39,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:55:39,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 03:55:39,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:39,698 INFO L225 Difference]: With dead ends: 32 [2019-12-27 03:55:39,699 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 03:55:39,700 INFO L631 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 [2019-12-27 03:55:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 03:55:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 03:55:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 03:55:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-27 03:55:39,707 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-27 03:55:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:39,707 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-27 03:55:39,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:55:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-27 03:55:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:55:39,710 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:39,710 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:39,710 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:39,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:39,711 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 03:55:39,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:39,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101232999] [2019-12-27 03:55:39,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:39,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101232999] [2019-12-27 03:55:39,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:39,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:55:39,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562754976] [2019-12-27 03:55:39,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:55:39,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:39,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:55:39,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:55:39,787 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-27 03:55:39,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:39,812 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-27 03:55:39,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:55:39,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 03:55:39,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:39,813 INFO L225 Difference]: With dead ends: 36 [2019-12-27 03:55:39,813 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 03:55:39,814 INFO L631 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 [2019-12-27 03:55:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 03:55:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 03:55:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 03:55:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 03:55:39,818 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-27 03:55:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:39,818 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 03:55:39,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:55:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 03:55:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:55:39,819 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:39,819 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:39,819 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:39,820 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-27 03:55:39,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:39,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498196761] [2019-12-27 03:55:39,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:39,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498196761] [2019-12-27 03:55:39,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:39,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:55:39,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620761938] [2019-12-27 03:55:39,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 03:55:39,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:39,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 03:55:39,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:55:39,966 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-27 03:55:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:40,008 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-27 03:55:40,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 03:55:40,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 03:55:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:40,009 INFO L225 Difference]: With dead ends: 31 [2019-12-27 03:55:40,009 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 03:55:40,009 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 03:55:40,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 03:55:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 03:55:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 03:55:40,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 03:55:40,013 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-27 03:55:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:40,014 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 03:55:40,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 03:55:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 03:55:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:55:40,015 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:40,015 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:40,015 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:40,015 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-27 03:55:40,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:40,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761246282] [2019-12-27 03:55:40,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:40,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761246282] [2019-12-27 03:55:40,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:40,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 03:55:40,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940326070] [2019-12-27 03:55:40,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 03:55:40,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:40,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 03:55:40,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 03:55:40,127 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-27 03:55:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:40,196 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-27 03:55:40,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 03:55:40,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 03:55:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:40,197 INFO L225 Difference]: With dead ends: 25 [2019-12-27 03:55:40,197 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 03:55:40,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 03:55:40,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 03:55:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 03:55:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 03:55:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 03:55:40,201 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 03:55:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:40,201 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 03:55:40,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 03:55:40,205 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 03:55:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:55:40,206 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:55:40,206 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:55:40,206 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:55:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:55:40,206 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-27 03:55:40,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:55:40,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586629406] [2019-12-27 03:55:40,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:55:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:55:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:55:40,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586629406] [2019-12-27 03:55:40,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:55:40,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:55:40,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013564500] [2019-12-27 03:55:40,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:55:40,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:55:40,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:55:40,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:55:40,245 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-27 03:55:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:55:40,279 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-27 03:55:40,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:55:40,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:55:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:55:40,279 INFO L225 Difference]: With dead ends: 17 [2019-12-27 03:55:40,279 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:55:40,280 INFO L631 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 [2019-12-27 03:55:40,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:55:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:55:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:55:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:55:40,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:55:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:55:40,282 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:55:40,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:55:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:55:40,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:55:40,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:55:40 BasicIcfg [2019-12-27 03:55:40,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:55:40,287 INFO L168 Benchmark]: Toolchain (without parser) took 4173.88 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 102.0 MB in the beginning and 106.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 94.8 MB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,288 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.54 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 161.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.06 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 158.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,291 INFO L168 Benchmark]: Boogie Preprocessor took 26.97 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,292 INFO L168 Benchmark]: RCFGBuilder took 457.70 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 137.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,292 INFO L168 Benchmark]: TraceAbstraction took 3007.29 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 137.1 MB in the beginning and 106.3 MB in the end (delta: 30.8 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2019-12-27 03:55:40,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 625.54 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 161.5 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.06 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 158.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.97 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.70 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 137.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3007.29 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 137.1 MB in the beginning and 106.3 MB in the end (delta: 30.8 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 52 SDslu, 58 SDs, 0 SdLazy, 49 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...