/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:09:30,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:09:30,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:09:30,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:09:30,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:09:30,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:09:30,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:09:30,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:09:30,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:09:30,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:09:30,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:09:30,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:09:30,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:09:30,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:09:30,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:09:30,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:09:30,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:09:30,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:09:30,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:09:30,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:09:30,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:09:30,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:09:30,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:09:30,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:09:30,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:09:30,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:09:30,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:09:30,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:09:30,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:09:30,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:09:30,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:09:30,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:09:30,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:09:30,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:09:30,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:09:30,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:09:30,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:09:30,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:09:30,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:09:30,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:09:30,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:09:30,208 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:09:30,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:09:30,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:09:30,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:09:30,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:09:30,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:09:30,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:09:30,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:09:30,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:09:30,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:09:30,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:09:30,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:09:30,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:09:30,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:09:30,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:09:30,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:09:30,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:09:30,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:09:30,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:09:30,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:09:30,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:09:30,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:09:30,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:09:30,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:09:30,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:09:30,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:09:30,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:09:30,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:09:30,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:09:30,503 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:09:30,504 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:09:30,505 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2019-12-19 05:09:30,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df579311c/1ab90f43231248ef918f00bbcebe1bd1/FLAG31ff808cd [2019-12-19 05:09:31,132 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:09:31,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2019-12-19 05:09:31,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df579311c/1ab90f43231248ef918f00bbcebe1bd1/FLAG31ff808cd [2019-12-19 05:09:31,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df579311c/1ab90f43231248ef918f00bbcebe1bd1 [2019-12-19 05:09:31,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:09:31,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:09:31,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:09:31,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:09:31,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:09:31,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:09:31" (1/1) ... [2019-12-19 05:09:31,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497ae45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:31, skipping insertion in model container [2019-12-19 05:09:31,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:09:31" (1/1) ... [2019-12-19 05:09:31,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:09:31,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:09:31,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:09:31,972 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:09:32,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:09:32,099 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:09:32,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32 WrapperNode [2019-12-19 05:09:32,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:09:32,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:09:32,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:09:32,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:09:32,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:09:32,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:09:32,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:09:32,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:09:32,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (1/1) ... [2019-12-19 05:09:32,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:09:32,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:09:32,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:09:32,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:09:32,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (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 [2019-12-19 05:09:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:09:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:09:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:09:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:09:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:09:32,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:09:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:09:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:09:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:09:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:09:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:09:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:09:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:09:32,270 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:09:32,643 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:09:32,643 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:09:32,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:09:32 BoogieIcfgContainer [2019-12-19 05:09:32,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:09:32,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:09:32,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:09:32,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:09:32,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:09:31" (1/3) ... [2019-12-19 05:09:32,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bebee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:09:32, skipping insertion in model container [2019-12-19 05:09:32,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:09:32" (2/3) ... [2019-12-19 05:09:32,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bebee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:09:32, skipping insertion in model container [2019-12-19 05:09:32,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:09:32" (3/3) ... [2019-12-19 05:09:32,654 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2019-12-19 05:09:32,664 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:09:32,665 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:09:32,672 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:09:32,673 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:09:32,705 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,705 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,705 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,706 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,706 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,707 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,707 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,707 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,707 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,708 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,709 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,709 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,709 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,709 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,710 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,710 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,713 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,713 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,714 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,714 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,722 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,722 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,723 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,726 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,726 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,726 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,726 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:09:32,743 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:09:32,763 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:09:32,764 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:09:32,764 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:09:32,764 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:09:32,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:09:32,765 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:09:32,765 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:09:32,765 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:09:32,777 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:09:32,856 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:09:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:09:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:09:32,876 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:32,877 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:32,877 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:32,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:32,884 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-19 05:09:32,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:32,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700234747] [2019-12-19 05:09:32,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:33,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700234747] [2019-12-19 05:09:33,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:33,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:09:33,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577276449] [2019-12-19 05:09:33,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:09:33,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:33,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:09:33,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:09:33,307 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:09:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:33,467 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:09:33,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:09:33,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:09:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:33,509 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:09:33,509 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:09:33,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:09:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:09:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:09:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:09:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:09:33,627 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:09:33,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:33,628 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:09:33,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:09:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:09:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:09:33,632 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:33,632 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:33,632 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:33,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:33,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-19 05:09:33,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:33,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075332762] [2019-12-19 05:09:33,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:33,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075332762] [2019-12-19 05:09:33,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:33,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:09:33,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260218171] [2019-12-19 05:09:33,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:09:33,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:33,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:09:33,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:09:33,800 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:09:33,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:33,880 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:09:33,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:09:33,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:09:33,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:33,886 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:09:33,886 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:09:33,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:09:33,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:09:33,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:09:33,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:09:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:09:33,918 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:09:33,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:33,919 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:09:33,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:09:33,919 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:09:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:09:33,921 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:33,921 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:33,922 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:33,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:33,922 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-19 05:09:33,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:33,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525362070] [2019-12-19 05:09:33,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:34,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525362070] [2019-12-19 05:09:34,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:34,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:09:34,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702998535] [2019-12-19 05:09:34,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:09:34,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:34,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:09:34,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:09:34,054 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:09:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:34,152 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:09:34,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:09:34,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:09:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:34,156 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:09:34,156 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:09:34,157 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:09:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:09:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:09:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:09:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:09:34,178 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:09:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:34,178 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:09:34,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:09:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:09:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:34,183 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:34,184 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:34,184 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:34,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-19 05:09:34,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:34,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245643376] [2019-12-19 05:09:34,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:34,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245643376] [2019-12-19 05:09:34,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:34,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:09:34,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781748357] [2019-12-19 05:09:34,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:09:34,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:34,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:09:34,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:09:34,384 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:09:34,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:34,676 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-19 05:09:34,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:09:34,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:09:34,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:34,680 INFO L225 Difference]: With dead ends: 565 [2019-12-19 05:09:34,680 INFO L226 Difference]: Without dead ends: 394 [2019-12-19 05:09:34,680 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:09:34,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-19 05:09:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 340. [2019-12-19 05:09:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-19 05:09:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-19 05:09:34,711 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-19 05:09:34,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:34,712 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-19 05:09:34,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:09:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-19 05:09:34,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:34,713 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:34,714 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:34,714 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:34,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1534465577, now seen corresponding path program 2 times [2019-12-19 05:09:34,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:34,715 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752307880] [2019-12-19 05:09:34,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:34,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752307880] [2019-12-19 05:09:34,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:34,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:09:34,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409639579] [2019-12-19 05:09:34,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:09:34,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:34,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:09:34,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:09:34,881 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-19 05:09:35,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:35,021 INFO L93 Difference]: Finished difference Result 556 states and 1473 transitions. [2019-12-19 05:09:35,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:09:35,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:09:35,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:35,027 INFO L225 Difference]: With dead ends: 556 [2019-12-19 05:09:35,027 INFO L226 Difference]: Without dead ends: 334 [2019-12-19 05:09:35,028 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:09:35,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-19 05:09:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2019-12-19 05:09:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 05:09:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 05:09:35,040 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 05:09:35,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:35,041 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 05:09:35,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:09:35,041 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 05:09:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:35,042 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:35,043 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:35,046 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:35,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:35,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 3 times [2019-12-19 05:09:35,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:35,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341229339] [2019-12-19 05:09:35,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:35,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341229339] [2019-12-19 05:09:35,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:35,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:09:35,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062668561] [2019-12-19 05:09:35,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:09:35,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:35,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:09:35,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:09:35,250 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-19 05:09:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:35,359 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-19 05:09:35,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:09:35,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:09:35,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:35,362 INFO L225 Difference]: With dead ends: 487 [2019-12-19 05:09:35,362 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 05:09:35,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:09:35,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 05:09:35,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 05:09:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 05:09:35,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 05:09:35,375 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 05:09:35,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:35,375 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 05:09:35,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:09:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 05:09:35,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:09:35,378 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:09:35,378 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:09:35,378 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:09:35,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:09:35,379 INFO L82 PathProgramCache]: Analyzing trace with hash -627162331, now seen corresponding path program 4 times [2019-12-19 05:09:35,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:09:35,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342014555] [2019-12-19 05:09:35,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:09:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:09:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:09:35,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342014555] [2019-12-19 05:09:35,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:09:35,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:09:35,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005060673] [2019-12-19 05:09:35,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:09:35,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:09:35,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:09:35,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:09:35,544 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-19 05:09:35,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:09:35,674 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 05:09:35,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:09:35,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:09:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:09:35,675 INFO L225 Difference]: With dead ends: 259 [2019-12-19 05:09:35,675 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:09:35,676 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:09:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:09:35,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:09:35,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:09:35,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:09:35,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:09:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:09:35,677 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:09:35,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:09:35,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:09:35,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:09:35,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:09:35 BasicIcfg [2019-12-19 05:09:35,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:09:35,686 INFO L168 Benchmark]: Toolchain (without parser) took 4279.24 ms. Allocated memory was 146.3 MB in the beginning and 246.9 MB in the end (delta: 100.7 MB). Free memory was 103.2 MB in the beginning and 95.7 MB in the end (delta: 7.5 MB). Peak memory consumption was 108.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,687 INFO L168 Benchmark]: CDTParser took 0.20 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.76 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.0 MB in the beginning and 161.5 MB in the end (delta: -58.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,690 INFO L168 Benchmark]: Boogie Preprocessor took 27.59 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,690 INFO L168 Benchmark]: RCFGBuilder took 449.20 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 136.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,691 INFO L168 Benchmark]: TraceAbstraction took 3036.94 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 136.2 MB in the beginning and 95.7 MB in the end (delta: 40.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:09:35,696 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.76 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 103.0 MB in the beginning and 161.5 MB in the end (delta: -58.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.59 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.20 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 136.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3036.94 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 136.2 MB in the beginning and 95.7 MB in the end (delta: 40.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 372 SDtfs, 481 SDslu, 1043 SDs, 0 SdLazy, 180 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 63 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 22893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...