/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:41:40,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:41:40,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:41:40,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:41:40,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:41:40,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:41:40,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:41:40,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:41:40,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:41:40,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:41:40,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:41:40,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:41:40,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:41:40,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:41:40,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:41:40,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:41:40,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:41:40,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:41:40,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:41:40,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:41:40,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:41:40,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:41:40,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:41:40,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:41:40,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:41:40,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:41:40,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:41:40,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:41:40,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:41:40,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:41:40,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:41:40,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:41:40,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:41:40,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:41:40,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:41:40,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:41:40,742 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-NoLbe.epf [2019-12-27 08:41:40,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:41:40,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:41:40,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:41:40,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:41:40,771 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:41:40,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:41:40,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:41:40,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:41:40,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:41:40,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:41:40,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:41:40,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:41:40,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:41:40,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:41:40,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:41:40,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:41:40,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:41:40,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:41:40,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:41:40,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:41:40,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:41:40,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:41:40,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:41:40,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:41:40,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:41:40,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:41:40,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:41:40,776 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:41:40,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:41:40,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:41:41,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:41:41,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:41:41,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:41:41,089 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:41:41,089 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:41:41,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 08:41:41,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a83529b/73f3499dcd664af9a70f46fbcd7d769d/FLAG7448dd109 [2019-12-27 08:41:41,682 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:41:41,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 08:41:41,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a83529b/73f3499dcd664af9a70f46fbcd7d769d/FLAG7448dd109 [2019-12-27 08:41:41,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a83529b/73f3499dcd664af9a70f46fbcd7d769d [2019-12-27 08:41:41,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:41:41,995 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:41:41,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:41:41,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:41:42,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:41:42,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:41:41" (1/1) ... [2019-12-27 08:41:42,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c1551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42, skipping insertion in model container [2019-12-27 08:41:42,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:41:41" (1/1) ... [2019-12-27 08:41:42,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:41:42,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:41:42,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:41:42,612 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:41:42,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:41:42,732 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:41:42,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42 WrapperNode [2019-12-27 08:41:42,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:41:42,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:41:42,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:41:42,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:41:42,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:41:42,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:41:42,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:41:42,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:41:42,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (1/1) ... [2019-12-27 08:41:42,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:41:42,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:41:42,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:41:42,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:41:42,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (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 08:41:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 08:41:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 08:41:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 08:41:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:41:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:41:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:41:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:41:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:41:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:41:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:41:42,872 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 08:41:43,243 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:41:43,243 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 08:41:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:41:43 BoogieIcfgContainer [2019-12-27 08:41:43,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:41:43,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:41:43,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:41:43,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:41:43,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:41:41" (1/3) ... [2019-12-27 08:41:43,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bce0484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:41:43, skipping insertion in model container [2019-12-27 08:41:43,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:42" (2/3) ... [2019-12-27 08:41:43,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bce0484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:41:43, skipping insertion in model container [2019-12-27 08:41:43,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:41:43" (3/3) ... [2019-12-27 08:41:43,254 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2019-12-27 08:41:43,263 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:41:43,263 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:41:43,270 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:41:43,271 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:41:43,299 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,299 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,300 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,300 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,301 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,302 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,302 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,309 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,309 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,310 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,310 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,315 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,316 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,316 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,316 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:43,341 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 08:41:43,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:41:43,362 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:41:43,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:41:43,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:41:43,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:41:43,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:41:43,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:41:43,363 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:41:43,376 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 77 transitions [2019-12-27 08:41:43,438 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 935 states. [2019-12-27 08:41:43,441 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states. [2019-12-27 08:41:43,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 08:41:43,451 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:43,452 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:43,452 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:43,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:43,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1213500261, now seen corresponding path program 1 times [2019-12-27 08:41:43,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:43,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782465646] [2019-12-27 08:41:43,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:43,632 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 08:41:43,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782465646] [2019-12-27 08:41:43,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:43,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:41:43,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709402820] [2019-12-27 08:41:43,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 08:41:43,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:43,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 08:41:43,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:41:43,660 INFO L87 Difference]: Start difference. First operand 935 states. Second operand 2 states. [2019-12-27 08:41:43,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:43,719 INFO L93 Difference]: Finished difference Result 935 states and 2570 transitions. [2019-12-27 08:41:43,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 08:41:43,720 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-12-27 08:41:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:43,756 INFO L225 Difference]: With dead ends: 935 [2019-12-27 08:41:43,757 INFO L226 Difference]: Without dead ends: 821 [2019-12-27 08:41:43,758 INFO L631 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 [2019-12-27 08:41:43,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-12-27 08:41:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2019-12-27 08:41:43,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-12-27 08:41:43,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 2300 transitions. [2019-12-27 08:41:43,890 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 2300 transitions. Word has length 20 [2019-12-27 08:41:43,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:43,890 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 2300 transitions. [2019-12-27 08:41:43,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 08:41:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 2300 transitions. [2019-12-27 08:41:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 08:41:43,892 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:43,893 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:43,893 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:43,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1213470470, now seen corresponding path program 1 times [2019-12-27 08:41:43,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:43,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134864634] [2019-12-27 08:41:43,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:43,998 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 08:41:43,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134864634] [2019-12-27 08:41:43,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:43,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:41:44,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433056617] [2019-12-27 08:41:44,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:41:44,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:44,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:41:44,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,026 INFO L87 Difference]: Start difference. First operand 821 states and 2300 transitions. Second operand 3 states. [2019-12-27 08:41:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:44,061 INFO L93 Difference]: Finished difference Result 848 states and 2299 transitions. [2019-12-27 08:41:44,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:41:44,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-27 08:41:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:44,068 INFO L225 Difference]: With dead ends: 848 [2019-12-27 08:41:44,068 INFO L226 Difference]: Without dead ends: 686 [2019-12-27 08:41:44,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2019-12-27 08:41:44,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 632. [2019-12-27 08:41:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-12-27 08:41:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1741 transitions. [2019-12-27 08:41:44,097 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1741 transitions. Word has length 20 [2019-12-27 08:41:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:44,097 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 1741 transitions. [2019-12-27 08:41:44,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:41:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1741 transitions. [2019-12-27 08:41:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-27 08:41:44,100 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:44,100 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:44,101 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:44,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:44,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1428252561, now seen corresponding path program 1 times [2019-12-27 08:41:44,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:44,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268734686] [2019-12-27 08:41:44,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:44,178 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 08:41:44,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268734686] [2019-12-27 08:41:44,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:44,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:41:44,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749585755] [2019-12-27 08:41:44,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:41:44,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:44,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:41:44,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,180 INFO L87 Difference]: Start difference. First operand 632 states and 1741 transitions. Second operand 3 states. [2019-12-27 08:41:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:44,211 INFO L93 Difference]: Finished difference Result 584 states and 1569 transitions. [2019-12-27 08:41:44,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:41:44,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-27 08:41:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:44,215 INFO L225 Difference]: With dead ends: 584 [2019-12-27 08:41:44,216 INFO L226 Difference]: Without dead ends: 407 [2019-12-27 08:41:44,216 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-12-27 08:41:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2019-12-27 08:41:44,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-12-27 08:41:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 1092 transitions. [2019-12-27 08:41:44,231 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 1092 transitions. Word has length 23 [2019-12-27 08:41:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:44,232 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 1092 transitions. [2019-12-27 08:41:44,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:41:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 1092 transitions. [2019-12-27 08:41:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-27 08:41:44,236 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:44,236 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:44,236 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:44,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1488623692, now seen corresponding path program 1 times [2019-12-27 08:41:44,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:44,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092363648] [2019-12-27 08:41:44,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:44,302 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 08:41:44,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092363648] [2019-12-27 08:41:44,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:44,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:41:44,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461777638] [2019-12-27 08:41:44,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:41:44,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:44,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:41:44,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,305 INFO L87 Difference]: Start difference. First operand 407 states and 1092 transitions. Second operand 3 states. [2019-12-27 08:41:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:44,334 INFO L93 Difference]: Finished difference Result 407 states and 1077 transitions. [2019-12-27 08:41:44,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:41:44,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-27 08:41:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:44,339 INFO L225 Difference]: With dead ends: 407 [2019-12-27 08:41:44,339 INFO L226 Difference]: Without dead ends: 365 [2019-12-27 08:41:44,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-12-27 08:41:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-12-27 08:41:44,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-12-27 08:41:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 953 transitions. [2019-12-27 08:41:44,352 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 953 transitions. Word has length 27 [2019-12-27 08:41:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:44,353 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 953 transitions. [2019-12-27 08:41:44,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:41:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 953 transitions. [2019-12-27 08:41:44,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-27 08:41:44,355 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:44,355 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:44,355 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:44,356 INFO L82 PathProgramCache]: Analyzing trace with hash -423541842, now seen corresponding path program 1 times [2019-12-27 08:41:44,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:44,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435310047] [2019-12-27 08:41:44,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:44,413 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 08:41:44,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435310047] [2019-12-27 08:41:44,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:44,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:41:44,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318850036] [2019-12-27 08:41:44,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:41:44,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:44,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:41:44,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,417 INFO L87 Difference]: Start difference. First operand 365 states and 953 transitions. Second operand 3 states. [2019-12-27 08:41:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:44,436 INFO L93 Difference]: Finished difference Result 230 states and 665 transitions. [2019-12-27 08:41:44,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:41:44,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-27 08:41:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:44,438 INFO L225 Difference]: With dead ends: 230 [2019-12-27 08:41:44,438 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:41:44,438 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:41:44,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:41:44,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:41:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:41:44,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-12-27 08:41:44,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:44,440 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:41:44,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:41:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:41:44,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:41:44,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:41:44 BasicIcfg [2019-12-27 08:41:44,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:41:44,450 INFO L168 Benchmark]: Toolchain (without parser) took 2454.40 ms. Allocated memory was 138.9 MB in the beginning and 236.5 MB in the end (delta: 97.5 MB). Free memory was 103.1 MB in the beginning and 152.9 MB in the end (delta: -49.7 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,451 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.35 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 102.9 MB in the beginning and 164.7 MB in the end (delta: -61.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.71 ms. Allocated memory is still 204.5 MB. Free memory was 164.7 MB in the beginning and 162.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,454 INFO L168 Benchmark]: Boogie Preprocessor took 27.96 ms. Allocated memory is still 204.5 MB. Free memory was 162.7 MB in the beginning and 161.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,454 INFO L168 Benchmark]: RCFGBuilder took 435.61 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 140.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,455 INFO L168 Benchmark]: TraceAbstraction took 1199.93 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 139.4 MB in the beginning and 152.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:44,459 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 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.35 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 102.9 MB in the beginning and 164.7 MB in the end (delta: -61.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.71 ms. Allocated memory is still 204.5 MB. Free memory was 164.7 MB in the beginning and 162.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.96 ms. Allocated memory is still 204.5 MB. Free memory was 162.7 MB in the beginning and 161.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.61 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 140.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1199.93 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 139.4 MB in the beginning and 152.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 2 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 117 SDslu, 144 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=935occurred 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, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3108 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...