/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:55:35,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:55:35,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:55:35,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:55:35,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:55:35,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:55:35,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:55:35,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:55:35,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:55:35,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:55:35,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:55:35,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:55:35,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:55:35,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:55:35,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:55:35,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:55:35,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:55:35,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:55:35,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:55:35,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:55:35,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:55:35,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:55:35,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:55:35,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:55:35,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:55:35,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:55:35,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:55:35,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:55:35,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:55:35,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:55:35,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:55:35,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:55:35,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:55:35,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:55:35,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:55:35,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:55:35,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:55:35,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:55:35,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:55:35,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:55:35,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:55:35,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:55:35,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:55:35,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:55:35,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:55:35,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:55:35,802 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:55:35,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:55:35,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:55:35,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:55:35,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:55:35,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:55:35,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:55:35,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:55:35,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:55:35,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:55:35,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:55:35,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:55:35,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:55:35,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:55:35,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:55:35,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:55:35,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:55:35,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:55:35,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:55:35,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:55:35,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:55:35,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:55:35,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:55:35,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:55:35,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:55:35,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:55:36,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:55:36,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:55:36,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:55:36,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:55:36,308 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:55:36,309 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-09-11 15:55:36,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f97e417b6/449ffa045a474c41812be487295e85ef/FLAGe184cc9a4 [2020-09-11 15:55:37,082 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:55:37,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-09-11 15:55:37,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f97e417b6/449ffa045a474c41812be487295e85ef/FLAGe184cc9a4 [2020-09-11 15:55:37,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f97e417b6/449ffa045a474c41812be487295e85ef [2020-09-11 15:55:37,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:55:37,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:55:37,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:55:37,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:55:37,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:55:37,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:55:37" (1/1) ... [2020-09-11 15:55:37,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67abc2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:37, skipping insertion in model container [2020-09-11 15:55:37,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:55:37" (1/1) ... [2020-09-11 15:55:37,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:55:37,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:55:37,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:55:37,977 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:55:38,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:55:38,158 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:55:38,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38 WrapperNode [2020-09-11 15:55:38,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:55:38,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:55:38,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:55:38,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:55:38,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:55:38,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:55:38,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:55:38,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:55:38,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... [2020-09-11 15:55:38,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:55:38,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:55:38,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:55:38,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:55:38,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 15:55:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:55:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:55:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:55:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:55:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:55:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:55:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:55:38,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:55:38,333 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:55:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:55:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:55:38,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:55:38,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:55:38,337 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:55:38,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:55:38,737 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:55:38,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:55:38 BoogieIcfgContainer [2020-09-11 15:55:38,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:55:38,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:55:38,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:55:38,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:55:38,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:55:37" (1/3) ... [2020-09-11 15:55:38,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d7016b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:55:38, skipping insertion in model container [2020-09-11 15:55:38,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:55:38" (2/3) ... [2020-09-11 15:55:38,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d7016b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:55:38, skipping insertion in model container [2020-09-11 15:55:38,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:55:38" (3/3) ... [2020-09-11 15:55:38,752 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2020-09-11 15:55:38,763 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:55:38,763 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:55:38,773 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:55:38,774 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:55:38,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,803 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,803 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,805 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,805 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,807 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,807 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,813 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,813 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,827 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,828 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:55:38,851 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:55:38,878 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:55:38,878 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:55:38,879 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:55:38,879 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:55:38,879 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:55:38,879 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:55:38,879 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:55:38,880 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:55:38,896 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-11 15:55:38,898 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:55:38,944 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:55:38,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:55:38,950 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:55:38,953 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-11 15:55:38,975 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-11 15:55:38,975 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:55:38,976 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:55:38,978 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 15:55:38,979 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:55:40,457 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-11 15:55:40,577 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-09-11 15:55:40,577 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 15:55:40,583 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-11 15:55:40,626 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-11 15:55:40,629 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-11 15:55:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:55:40,642 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:55:40,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:55:40,644 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:55:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:55:40,653 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-09-11 15:55:40,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:55:40,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492101229] [2020-09-11 15:55:40,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:55:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:55:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:55:40,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492101229] [2020-09-11 15:55:40,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:55:40,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:55:40,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654245780] [2020-09-11 15:55:40,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-11 15:55:40,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:55:40,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-11 15:55:40,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:55:40,895 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-11 15:55:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:55:40,932 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-11 15:55:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-11 15:55:40,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-11 15:55:40,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:55:40,953 INFO L225 Difference]: With dead ends: 362 [2020-09-11 15:55:40,954 INFO L226 Difference]: Without dead ends: 298 [2020-09-11 15:55:40,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-11 15:55:40,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-11 15:55:41,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-11 15:55:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-11 15:55:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-11 15:55:41,037 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-11 15:55:41,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:55:41,038 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-11 15:55:41,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-11 15:55:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-11 15:55:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:55:41,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:55:41,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:55:41,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:55:41,041 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:55:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:55:41,041 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-09-11 15:55:41,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:55:41,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269529621] [2020-09-11 15:55:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:55:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:55:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:55:41,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269529621] [2020-09-11 15:55:41,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:55:41,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:55:41,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880077548] [2020-09-11 15:55:41,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:55:41,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:55:41,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:55:41,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:55:41,215 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 5 states. [2020-09-11 15:55:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:55:41,330 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-09-11 15:55:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:55:41,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-11 15:55:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:55:41,335 INFO L225 Difference]: With dead ends: 330 [2020-09-11 15:55:41,336 INFO L226 Difference]: Without dead ends: 266 [2020-09-11 15:55:41,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:55:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-11 15:55:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-09-11 15:55:41,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-11 15:55:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-09-11 15:55:41,361 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-09-11 15:55:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:55:41,361 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-09-11 15:55:41,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:55:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-09-11 15:55:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:55:41,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:55:41,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:55:41,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:55:41,364 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:55:41,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:55:41,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-09-11 15:55:41,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:55:41,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45170661] [2020-09-11 15:55:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:55:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:55:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:55:41,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45170661] [2020-09-11 15:55:41,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:55:41,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:55:41,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695918188] [2020-09-11 15:55:41,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:55:41,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:55:41,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:55:41,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:55:41,520 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 6 states. [2020-09-11 15:55:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:55:41,667 INFO L93 Difference]: Finished difference Result 350 states and 940 transitions. [2020-09-11 15:55:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 15:55:41,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-09-11 15:55:41,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:55:41,670 INFO L225 Difference]: With dead ends: 350 [2020-09-11 15:55:41,670 INFO L226 Difference]: Without dead ends: 182 [2020-09-11 15:55:41,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-11 15:55:41,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-11 15:55:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-11 15:55:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-11 15:55:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 458 transitions. [2020-09-11 15:55:41,683 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 458 transitions. Word has length 10 [2020-09-11 15:55:41,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:55:41,683 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 458 transitions. [2020-09-11 15:55:41,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:55:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 458 transitions. [2020-09-11 15:55:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:55:41,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:55:41,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:55:41,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:55:41,686 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:55:41,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:55:41,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-09-11 15:55:41,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:55:41,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428640398] [2020-09-11 15:55:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:55:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:55:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:55:41,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428640398] [2020-09-11 15:55:41,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:55:41,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:55:41,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883524957] [2020-09-11 15:55:41,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:55:41,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:55:41,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:55:41,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:55:41,786 INFO L87 Difference]: Start difference. First operand 182 states and 458 transitions. Second operand 5 states. [2020-09-11 15:55:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:55:41,843 INFO L93 Difference]: Finished difference Result 233 states and 559 transitions. [2020-09-11 15:55:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:55:41,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-11 15:55:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:55:41,845 INFO L225 Difference]: With dead ends: 233 [2020-09-11 15:55:41,845 INFO L226 Difference]: Without dead ends: 92 [2020-09-11 15:55:41,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:55:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-11 15:55:41,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-11 15:55:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-11 15:55:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 210 transitions. [2020-09-11 15:55:41,851 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 210 transitions. Word has length 12 [2020-09-11 15:55:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:55:41,851 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 210 transitions. [2020-09-11 15:55:41,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:55:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 210 transitions. [2020-09-11 15:55:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:55:41,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:55:41,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:55:41,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:55:41,853 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:55:41,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:55:41,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780743, now seen corresponding path program 1 times [2020-09-11 15:55:41,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:55:41,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056207135] [2020-09-11 15:55:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:55:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:55:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:55:41,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056207135] [2020-09-11 15:55:41,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:55:41,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:55:41,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741587657] [2020-09-11 15:55:41,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:55:41,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:55:41,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:55:41,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:55:41,932 INFO L87 Difference]: Start difference. First operand 92 states and 210 transitions. Second operand 5 states. [2020-09-11 15:55:41,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:55:41,974 INFO L93 Difference]: Finished difference Result 77 states and 170 transitions. [2020-09-11 15:55:41,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:55:41,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 15:55:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:55:41,975 INFO L225 Difference]: With dead ends: 77 [2020-09-11 15:55:41,976 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:55:41,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 15:55:41,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:55:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:55:41,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:55:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:55:41,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-11 15:55:41,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:55:41,977 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:55:41,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:55:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:55:41,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:55:41,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:55:41,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:55:41 BasicIcfg [2020-09-11 15:55:41,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:55:41,985 INFO L168 Benchmark]: Toolchain (without parser) took 4688.90 ms. Allocated memory was 143.7 MB in the beginning and 245.4 MB in the end (delta: 101.7 MB). Free memory was 105.4 MB in the beginning and 162.0 MB in the end (delta: -56.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,986 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.75 ms. Allocated memory was 143.7 MB in the beginning and 204.5 MB in the end (delta: 60.8 MB). Free memory was 104.8 MB in the beginning and 161.3 MB in the end (delta: -56.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.38 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 158.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,989 INFO L168 Benchmark]: Boogie Preprocessor took 30.74 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 157.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,990 INFO L168 Benchmark]: RCFGBuilder took 493.93 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 135.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,991 INFO L168 Benchmark]: TraceAbstraction took 3239.52 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 135.1 MB in the beginning and 162.0 MB in the end (delta: -26.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:55:41,995 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 856.75 ms. Allocated memory was 143.7 MB in the beginning and 204.5 MB in the end (delta: 60.8 MB). Free memory was 104.8 MB in the beginning and 161.3 MB in the end (delta: -56.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.38 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 158.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.74 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 157.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.93 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 135.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3239.52 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 135.1 MB in the beginning and 162.0 MB in the end (delta: -26.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 688 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 101 SDtfs, 164 SDslu, 177 SDs, 0 SdLazy, 84 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...