/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-wmm/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:46:30,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:46:30,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:46:30,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:46:30,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:46:30,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:46:30,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:46:30,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:46:30,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:46:30,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:46:30,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:46:30,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:46:30,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:46:30,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:46:30,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:46:30,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:46:30,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:46:30,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:46:30,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:46:30,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:46:30,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:46:30,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:46:30,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:46:30,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:46:30,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 07:46:30,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:46:30,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:46:30,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:46:30,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:46:30,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:46:30,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:46:30,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:46:30,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:46:30,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:46:30,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:46:30,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:46:30,186 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 07:46:30,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:46:30,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:46:30,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:46:30,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:46:30,206 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:46:30,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:46:30,207 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:46:30,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:46:30,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:46:30,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:46:30,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:46:30,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:46:30,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:46:30,208 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:46:30,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:46:30,208 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:46:30,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:46:30,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:46:30,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:46:30,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:46:30,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:46:30,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:46:30,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:46:30,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:46:30,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:46:30,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:46:30,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:46:30,211 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:46:30,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:46:30,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:46:30,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:46:30,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:46:30,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:46:30,488 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:46:30,488 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:46:30,489 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2019-12-27 07:46:30,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2156a212/4ea30dd92ba447ab817facf3efac2b84/FLAGe07bbfede [2019-12-27 07:46:31,099 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:46:31,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2019-12-27 07:46:31,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2156a212/4ea30dd92ba447ab817facf3efac2b84/FLAGe07bbfede [2019-12-27 07:46:31,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2156a212/4ea30dd92ba447ab817facf3efac2b84 [2019-12-27 07:46:31,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:46:31,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:46:31,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:46:31,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:46:31,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:46:31,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:46:31" (1/1) ... [2019-12-27 07:46:31,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59cb0fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:31, skipping insertion in model container [2019-12-27 07:46:31,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:46:31" (1/1) ... [2019-12-27 07:46:31,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:46:31,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:46:31,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:46:31,934 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:46:32,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:46:32,081 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:46:32,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32 WrapperNode [2019-12-27 07:46:32,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:46:32,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:46:32,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:46:32,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:46:32,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:46:32,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:46:32,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:46:32,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:46:32,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (1/1) ... [2019-12-27 07:46:32,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:46:32,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:46:32,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:46:32,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:46:32,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (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 07:46:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:46:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:46:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:46:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:46:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:46:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:46:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:46:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:46:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:46:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:46:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:46:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:46:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:46:32,235 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 07:46:32,574 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:46:32,574 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:46:32,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:46:32 BoogieIcfgContainer [2019-12-27 07:46:32,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:46:32,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:46:32,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:46:32,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:46:32,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:46:31" (1/3) ... [2019-12-27 07:46:32,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d030b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:46:32, skipping insertion in model container [2019-12-27 07:46:32,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:46:32" (2/3) ... [2019-12-27 07:46:32,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d030b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:46:32, skipping insertion in model container [2019-12-27 07:46:32,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:46:32" (3/3) ... [2019-12-27 07:46:32,583 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2019-12-27 07:46:32,593 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:46:32,593 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:46:32,599 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:46:32,600 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:46:32,635 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,635 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,636 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,638 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,638 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,639 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,639 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,639 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,640 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,642 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,642 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,642 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,643 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,643 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,643 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,643 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,644 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,644 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,648 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,648 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,649 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,649 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,655 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,655 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,656 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,658 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,658 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,658 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,659 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:46:32,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:46:32,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:46:32,686 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:46:32,687 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:46:32,687 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:46:32,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:46:32,687 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:46:32,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:46:32,687 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:46:32,700 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:46:32,701 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:46:32,745 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:46:32,746 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:46:32,752 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:46:32,755 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:46:32,774 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:46:32,775 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:46:32,777 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:46:32,779 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:46:32,780 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:46:34,034 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 07:46:34,169 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-27 07:46:34,169 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:46:34,173 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:46:34,183 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:46:34,185 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:46:34,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:46:34,192 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:34,193 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:34,193 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:34,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:34,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-27 07:46:34,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:34,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869830281] [2019-12-27 07:46:34,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:34,496 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 07:46:34,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869830281] [2019-12-27 07:46:34,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:34,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:46:34,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201431686] [2019-12-27 07:46:34,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:46:34,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:34,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:46:34,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:46:34,522 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:46:34,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:34,551 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 07:46:34,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:46:34,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:46:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:34,564 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:46:34,565 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:46:34,566 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:46:34,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:46:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:46:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:46:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:46:34,605 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:46:34,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:34,607 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:46:34,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:46:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:46:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:46:34,608 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:34,608 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:34,608 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:34,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:34,609 INFO L82 PathProgramCache]: Analyzing trace with hash -731020953, now seen corresponding path program 1 times [2019-12-27 07:46:34,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:34,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396955809] [2019-12-27 07:46:34,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:34,674 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 07:46:34,675 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396955809] [2019-12-27 07:46:34,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:34,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:46:34,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774420612] [2019-12-27 07:46:34,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:46:34,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:34,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:46:34,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:46:34,680 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:46:34,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:34,708 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:46:34,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:46:34,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:46:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:34,710 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:46:34,710 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:46:34,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:46:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:46:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:46:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:46:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 07:46:34,717 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 07:46:34,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:34,718 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 07:46:34,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:46:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 07:46:34,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:46:34,719 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:34,719 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:34,719 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:34,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:34,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1301449846, now seen corresponding path program 1 times [2019-12-27 07:46:34,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:34,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610341637] [2019-12-27 07:46:34,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:34,769 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 07:46:34,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610341637] [2019-12-27 07:46:34,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:34,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:46:34,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879170868] [2019-12-27 07:46:34,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:46:34,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:34,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:46:34,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:46:34,772 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 07:46:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:34,779 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 07:46:34,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:46:34,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:46:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:34,781 INFO L225 Difference]: With dead ends: 27 [2019-12-27 07:46:34,781 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 07:46:34,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:46:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 07:46:34,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 07:46:34,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 07:46:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 07:46:34,790 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 07:46:34,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:34,790 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 07:46:34,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:46:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 07:46:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:46:34,791 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:34,791 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:34,792 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1005356980, now seen corresponding path program 1 times [2019-12-27 07:46:34,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:34,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776338851] [2019-12-27 07:46:34,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:34,883 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 07:46:34,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776338851] [2019-12-27 07:46:34,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:34,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:46:34,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37619281] [2019-12-27 07:46:34,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:46:34,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:34,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:46:34,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:46:34,886 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 07:46:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:34,905 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 07:46:34,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:46:34,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:46:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:34,906 INFO L225 Difference]: With dead ends: 29 [2019-12-27 07:46:34,906 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:46:34,906 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:46:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:46:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:46:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:46:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:46:34,909 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 07:46:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:34,909 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:46:34,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:46:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:46:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:46:34,910 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:46:34,910 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:46:34,910 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:46:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:46:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 2 times [2019-12-27 07:46:34,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:46:34,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723325338] [2019-12-27 07:46:34,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:46:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:46:34,954 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 07:46:34,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723325338] [2019-12-27 07:46:34,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:46:34,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:46:34,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852553112] [2019-12-27 07:46:34,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:46:34,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:46:34,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:46:34,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:46:34,959 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:46:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:46:34,979 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:46:34,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:46:34,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:46:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:46:34,981 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:46:34,981 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:46:34,981 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:46:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:46:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:46:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:46:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:46:34,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:46:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:46:34,985 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:46:34,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:46:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:46:34,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:46:34,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:46:34 BasicIcfg [2019-12-27 07:46:34,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:46:34,994 INFO L168 Benchmark]: Toolchain (without parser) took 3569.65 ms. Allocated memory was 138.4 MB in the beginning and 247.5 MB in the end (delta: 109.1 MB). Free memory was 101.4 MB in the beginning and 162.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:34,995 INFO L168 Benchmark]: CDTParser took 1.41 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 07:46:34,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.27 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 159.6 MB in the end (delta: -58.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:34,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.75 ms. Allocated memory is still 202.9 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:34,998 INFO L168 Benchmark]: Boogie Preprocessor took 25.99 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:34,999 INFO L168 Benchmark]: RCFGBuilder took 422.51 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 135.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:35,000 INFO L168 Benchmark]: TraceAbstraction took 2414.81 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.7 MB in the beginning and 162.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:46:35,006 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.27 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 159.6 MB in the end (delta: -58.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.75 ms. Allocated memory is still 202.9 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.99 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.51 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 135.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2414.81 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.7 MB in the beginning and 162.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 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...