/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:44:37,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:44:37,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:44:37,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:44:37,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:44:37,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:44:37,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:44:37,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:44:37,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:44:37,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:44:37,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:44:37,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:44:37,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:44:37,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:44:37,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:44:37,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:44:37,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:44:37,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:44:37,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:44:37,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:44:37,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:44:37,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:44:37,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:44:37,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:44:37,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:44:37,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:44:37,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:44:37,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:44:37,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:44:37,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:44:37,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:44:37,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:44:37,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:44:37,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:44:37,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:44:37,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:44:37,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:44:37,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:44:37,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:44:37,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:44:37,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:44:37,185 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-VariableLbe.epf [2019-12-27 04:44:37,206 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:44:37,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:44:37,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:44:37,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:44:37,208 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:44:37,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:44:37,209 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:44:37,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:44:37,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:44:37,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:44:37,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:44:37,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:44:37,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:44:37,210 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:44:37,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:44:37,210 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:44:37,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:44:37,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:44:37,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:44:37,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:44:37,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:44:37,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:44:37,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:44:37,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:44:37,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:44:37,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:44:37,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:44:37,215 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 04:44:37,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:44:37,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:44:37,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:44:37,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:44:37,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:44:37,519 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:44:37,519 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:44:37,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 04:44:37,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8435dbd2/e9eab02348f44be3925565d229f64ee2/FLAG95a15b94a [2019-12-27 04:44:38,161 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:44:38,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 04:44:38,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8435dbd2/e9eab02348f44be3925565d229f64ee2/FLAG95a15b94a [2019-12-27 04:44:38,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8435dbd2/e9eab02348f44be3925565d229f64ee2 [2019-12-27 04:44:38,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:44:38,448 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:44:38,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:44:38,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:44:38,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:44:38,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:44:38" (1/1) ... [2019-12-27 04:44:38,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cdc2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:38, skipping insertion in model container [2019-12-27 04:44:38,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:44:38" (1/1) ... [2019-12-27 04:44:38,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:44:38,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:44:38,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:44:39,005 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:44:39,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:44:39,128 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:44:39,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39 WrapperNode [2019-12-27 04:44:39,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:44:39,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:44:39,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:44:39,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:44:39,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:44:39,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:44:39,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:44:39,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:44:39,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (1/1) ... [2019-12-27 04:44:39,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:44:39,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:44:39,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:44:39,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:44:39,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (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 04:44:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 04:44:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 04:44:39,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 04:44:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 04:44:39,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 04:44:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:44:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:44:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:44:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:44:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:44:39,281 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 04:44:39,678 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:44:39,679 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 04:44:39,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:44:39 BoogieIcfgContainer [2019-12-27 04:44:39,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:44:39,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:44:39,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:44:39,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:44:39,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:44:38" (1/3) ... [2019-12-27 04:44:39,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff393fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:44:39, skipping insertion in model container [2019-12-27 04:44:39,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:44:39" (2/3) ... [2019-12-27 04:44:39,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff393fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:44:39, skipping insertion in model container [2019-12-27 04:44:39,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:44:39" (3/3) ... [2019-12-27 04:44:39,689 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2019-12-27 04:44:39,699 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:44:39,700 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:44:39,706 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 04:44:39,707 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:44:39,733 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,733 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,733 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,734 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,735 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,735 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,736 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,736 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,737 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,737 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,738 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,738 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,742 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,743 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,743 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,743 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,750 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,750 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,751 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:44:39,776 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 04:44:39,792 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:44:39,793 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:44:39,793 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:44:39,793 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:44:39,794 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:44:39,794 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:44:39,794 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:44:39,794 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:44:39,809 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 77 transitions [2019-12-27 04:44:39,811 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 77 transitions [2019-12-27 04:44:39,864 INFO L132 PetriNetUnfolder]: 13/77 cut-off events. [2019-12-27 04:44:39,864 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 04:44:39,872 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 77 events. 13/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2019-12-27 04:44:39,877 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 77 transitions [2019-12-27 04:44:39,902 INFO L132 PetriNetUnfolder]: 13/77 cut-off events. [2019-12-27 04:44:39,902 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 04:44:39,904 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 77 events. 13/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2019-12-27 04:44:39,908 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1428 [2019-12-27 04:44:39,909 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:44:40,760 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-12-27 04:44:40,964 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4771 [2019-12-27 04:44:40,965 INFO L214 etLargeBlockEncoding]: Total number of compositions: 33 [2019-12-27 04:44:40,969 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 50 transitions [2019-12-27 04:44:41,022 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 447 states. [2019-12-27 04:44:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-12-27 04:44:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 04:44:41,033 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:41,034 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 04:44:41,034 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 04:44:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:41,042 INFO L82 PathProgramCache]: Analyzing trace with hash 299443589, now seen corresponding path program 1 times [2019-12-27 04:44:41,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:41,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566685770] [2019-12-27 04:44:41,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:41,194 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 04:44:41,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566685770] [2019-12-27 04:44:41,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:41,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:44:41,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019477451] [2019-12-27 04:44:41,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 04:44:41,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:41,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 04:44:41,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 04:44:41,220 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-12-27 04:44:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:41,264 INFO L93 Difference]: Finished difference Result 447 states and 1178 transitions. [2019-12-27 04:44:41,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 04:44:41,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-12-27 04:44:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:41,292 INFO L225 Difference]: With dead ends: 447 [2019-12-27 04:44:41,293 INFO L226 Difference]: Without dead ends: 390 [2019-12-27 04:44:41,295 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 04:44:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-12-27 04:44:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2019-12-27 04:44:41,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-12-27 04:44:41,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 1051 transitions. [2019-12-27 04:44:41,396 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 1051 transitions. Word has length 5 [2019-12-27 04:44:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:41,396 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 1051 transitions. [2019-12-27 04:44:41,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 04:44:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 1051 transitions. [2019-12-27 04:44:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 04:44:41,397 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:41,398 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-27 04:44:41,398 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 04:44:41,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash 692778246, now seen corresponding path program 1 times [2019-12-27 04:44:41,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:41,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332219440] [2019-12-27 04:44:41,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:41,483 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 04:44:41,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332219440] [2019-12-27 04:44:41,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:41,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:44:41,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576224239] [2019-12-27 04:44:41,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:44:41,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:41,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:44:41,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:41,487 INFO L87 Difference]: Start difference. First operand 390 states and 1051 transitions. Second operand 3 states. [2019-12-27 04:44:41,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:41,529 INFO L93 Difference]: Finished difference Result 393 states and 1016 transitions. [2019-12-27 04:44:41,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:44:41,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-27 04:44:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:41,533 INFO L225 Difference]: With dead ends: 393 [2019-12-27 04:44:41,533 INFO L226 Difference]: Without dead ends: 321 [2019-12-27 04:44:41,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:41,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-12-27 04:44:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2019-12-27 04:44:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-12-27 04:44:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 795 transitions. [2019-12-27 04:44:41,559 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 795 transitions. Word has length 6 [2019-12-27 04:44:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:41,560 INFO L462 AbstractCegarLoop]: Abstraction has 299 states and 795 transitions. [2019-12-27 04:44:41,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:44:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 795 transitions. [2019-12-27 04:44:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:44:41,561 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:41,562 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:44:41,562 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 04:44:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:41,563 INFO L82 PathProgramCache]: Analyzing trace with hash 545165990, now seen corresponding path program 1 times [2019-12-27 04:44:41,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:41,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130874687] [2019-12-27 04:44:41,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:41,647 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 04:44:41,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130874687] [2019-12-27 04:44:41,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:41,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:44:41,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234443529] [2019-12-27 04:44:41,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:44:41,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:41,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:44:41,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:41,651 INFO L87 Difference]: Start difference. First operand 299 states and 795 transitions. Second operand 3 states. [2019-12-27 04:44:41,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:41,688 INFO L93 Difference]: Finished difference Result 290 states and 750 transitions. [2019-12-27 04:44:41,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:44:41,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:44:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:41,692 INFO L225 Difference]: With dead ends: 290 [2019-12-27 04:44:41,692 INFO L226 Difference]: Without dead ends: 192 [2019-12-27 04:44:41,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:41,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-12-27 04:44:41,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2019-12-27 04:44:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-12-27 04:44:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 503 transitions. [2019-12-27 04:44:41,720 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 503 transitions. Word has length 8 [2019-12-27 04:44:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:41,724 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 503 transitions. [2019-12-27 04:44:41,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:44:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 503 transitions. [2019-12-27 04:44:41,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:44:41,727 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:41,727 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:44:41,727 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 04:44:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:41,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1196250254, now seen corresponding path program 1 times [2019-12-27 04:44:41,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:41,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054288132] [2019-12-27 04:44:41,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:41,827 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 04:44:41,827 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054288132] [2019-12-27 04:44:41,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:41,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:44:41,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062031467] [2019-12-27 04:44:41,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:44:41,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:41,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:44:41,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:41,829 INFO L87 Difference]: Start difference. First operand 192 states and 503 transitions. Second operand 3 states. [2019-12-27 04:44:41,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:41,862 INFO L93 Difference]: Finished difference Result 192 states and 493 transitions. [2019-12-27 04:44:41,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:44:41,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 04:44:41,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:41,865 INFO L225 Difference]: With dead ends: 192 [2019-12-27 04:44:41,865 INFO L226 Difference]: Without dead ends: 164 [2019-12-27 04:44:41,865 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 04:44:41,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-12-27 04:44:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-12-27 04:44:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-12-27 04:44:41,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 417 transitions. [2019-12-27 04:44:41,873 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 417 transitions. Word has length 11 [2019-12-27 04:44:41,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:41,874 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 417 transitions. [2019-12-27 04:44:41,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:44:41,874 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 417 transitions. [2019-12-27 04:44:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:44:41,881 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:41,882 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:44:41,882 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 04:44:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:41,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1811012180, now seen corresponding path program 2 times [2019-12-27 04:44:41,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:41,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797790363] [2019-12-27 04:44:41,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:41,952 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 04:44:41,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797790363] [2019-12-27 04:44:41,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:41,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:44:41,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936200567] [2019-12-27 04:44:41,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:44:41,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:41,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:44:41,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:41,954 INFO L87 Difference]: Start difference. First operand 164 states and 417 transitions. Second operand 3 states. [2019-12-27 04:44:41,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:41,979 INFO L93 Difference]: Finished difference Result 110 states and 320 transitions. [2019-12-27 04:44:41,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:44:41,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 04:44:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:41,982 INFO L225 Difference]: With dead ends: 110 [2019-12-27 04:44:41,982 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:44:41,982 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 04:44:41,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:44:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:44:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:44:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:44:41,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:44:41,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:41,983 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:44:41,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:44:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:44:41,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:44:41,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:44:41 BasicIcfg [2019-12-27 04:44:41,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:44:41,995 INFO L168 Benchmark]: Toolchain (without parser) took 3546.10 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 102.5 MB in the beginning and 201.9 MB in the end (delta: -99.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 04:44:41,998 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 04:44:42,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.12 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 163.7 MB in the end (delta: -61.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:42,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.68 ms. Allocated memory is still 203.9 MB. Free memory was 163.7 MB in the beginning and 161.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:42,007 INFO L168 Benchmark]: Boogie Preprocessor took 36.50 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 159.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:42,008 INFO L168 Benchmark]: RCFGBuilder took 468.58 ms. Allocated memory is still 203.9 MB. Free memory was 159.8 MB in the beginning and 138.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:42,009 INFO L168 Benchmark]: TraceAbstraction took 2310.61 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 138.2 MB in the beginning and 201.9 MB in the end (delta: -63.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 04:44:42,013 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.12 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 163.7 MB in the end (delta: -61.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.68 ms. Allocated memory is still 203.9 MB. Free memory was 163.7 MB in the beginning and 161.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.50 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 159.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 468.58 ms. Allocated memory is still 203.9 MB. Free memory was 159.8 MB in the beginning and 138.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2310.61 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 138.2 MB in the beginning and 201.9 MB in the end (delta: -63.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 70 ProgramPointsBefore, 43 ProgramPointsAfterwards, 77 TransitionsBefore, 50 TransitionsAfterwards, 1428 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 579 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4771 CheckedPairsTotal, 33 TotalNumberOfCompositions - 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 89 SDslu, 79 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447occurred 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, 22 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 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...