/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/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:08:23,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:08:23,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:08:23,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:08:23,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:08:23,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:08:23,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:08:23,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:08:23,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:08:23,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:08:23,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:08:23,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:08:23,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:08:23,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:08:23,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:08:23,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:08:23,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:08:23,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:08:23,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:08:23,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:08:23,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:08:23,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:08:23,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:08:23,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:08:23,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:08:23,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:08:23,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:08:23,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:08:23,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:08:23,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:08:23,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:08:23,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:08:23,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:08:23,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:08:23,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:08:23,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:08:23,271 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 05:08:23,302 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:08:23,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:08:23,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:08:23,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:08:23,304 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:08:23,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:08:23,304 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:08:23,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:08:23,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:08:23,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:08:23,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:08:23,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:08:23,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:08:23,306 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:08:23,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:08:23,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:08:23,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:08:23,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:08:23,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:08:23,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:08:23,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:08:23,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:08:23,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:08:23,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:08:23,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:08:23,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:08:23,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:08:23,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:08:23,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:08:23,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:08:23,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:08:23,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:08:23,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:08:23,628 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:08:23,628 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:08:23,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2019-12-19 05:08:23,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3bca159/e1d1d9aa779a4cb49e26ec7ea56d2a31/FLAG8697fc58a [2019-12-19 05:08:24,285 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:08:24,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2019-12-19 05:08:24,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3bca159/e1d1d9aa779a4cb49e26ec7ea56d2a31/FLAG8697fc58a [2019-12-19 05:08:24,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3bca159/e1d1d9aa779a4cb49e26ec7ea56d2a31 [2019-12-19 05:08:24,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:08:24,547 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:08:24,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:08:24,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:08:24,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:08:24,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:08:24" (1/1) ... [2019-12-19 05:08:24,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408b5995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:24, skipping insertion in model container [2019-12-19 05:08:24,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:08:24" (1/1) ... [2019-12-19 05:08:24,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:08:24,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:08:25,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:08:25,134 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:08:25,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:08:25,265 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:08:25,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25 WrapperNode [2019-12-19 05:08:25,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:08:25,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:08:25,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:08:25,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:08:25,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:08:25,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:08:25,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:08:25,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:08:25,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (1/1) ... [2019-12-19 05:08:25,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:08:25,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:08:25,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:08:25,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:08:25,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (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 05:08:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:08:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:08:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:08:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:08:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:08:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:08:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:08:25,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:08:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:08:25,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:08:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:08:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:08:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:08:25,413 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 05:08:25,786 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:08:25,786 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:08:25,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:08:25 BoogieIcfgContainer [2019-12-19 05:08:25,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:08:25,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:08:25,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:08:25,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:08:25,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:08:24" (1/3) ... [2019-12-19 05:08:25,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8d7641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:08:25, skipping insertion in model container [2019-12-19 05:08:25,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:08:25" (2/3) ... [2019-12-19 05:08:25,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8d7641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:08:25, skipping insertion in model container [2019-12-19 05:08:25,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:08:25" (3/3) ... [2019-12-19 05:08:25,796 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2019-12-19 05:08:25,806 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:08:25,806 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:08:25,814 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:08:25,815 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:08:25,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,842 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,843 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,843 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,844 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,844 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,845 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,845 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,845 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,846 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,846 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,847 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,847 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,847 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,847 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,851 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,852 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,852 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,858 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,859 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,859 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,859 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,862 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,863 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,863 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,863 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:08:25,881 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:08:25,900 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:08:25,901 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:08:25,901 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:08:25,901 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:08:25,901 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:08:25,901 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:08:25,901 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:08:25,902 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:08:25,912 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:08:25,994 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:08:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:08:26,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:08:26,012 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:26,013 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 05:08:26,014 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:26,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:26,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1986917389, now seen corresponding path program 1 times [2019-12-19 05:08:26,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:26,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353004496] [2019-12-19 05:08:26,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:26,421 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 05:08:26,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353004496] [2019-12-19 05:08:26,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:26,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:08:26,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8114985] [2019-12-19 05:08:26,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:08:26,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:26,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:08:26,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:08:26,448 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:08:26,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:26,591 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:08:26,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:08:26,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:08:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:26,650 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:08:26,651 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:08:26,653 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 05:08:26,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:08:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:08:26,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:08:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:08:26,766 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:08:26,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:26,766 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:08:26,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:08:26,767 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:08:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:08:26,770 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:26,770 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 05:08:26,770 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:26,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1215038929, now seen corresponding path program 1 times [2019-12-19 05:08:26,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:26,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405518027] [2019-12-19 05:08:26,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:26,920 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 05:08:26,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405518027] [2019-12-19 05:08:26,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:26,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:08:26,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506208054] [2019-12-19 05:08:26,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:08:26,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:26,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:08:26,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:08:26,924 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:08:26,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:26,992 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:08:26,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:08:26,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:08:26,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:26,998 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:08:26,999 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:08:26,999 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 05:08:27,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:08:27,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:08:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:08:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:08:27,031 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:08:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:27,032 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:08:27,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:08:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:08:27,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:08:27,034 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:27,034 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 05:08:27,034 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:27,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:27,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1863729100, now seen corresponding path program 1 times [2019-12-19 05:08:27,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:27,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067589450] [2019-12-19 05:08:27,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:27,201 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 05:08:27,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067589450] [2019-12-19 05:08:27,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:27,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:08:27,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376776170] [2019-12-19 05:08:27,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:08:27,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:27,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:08:27,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:08:27,205 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:08:27,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:27,308 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:08:27,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:08:27,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:08:27,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:27,312 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:08:27,312 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:08:27,313 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 05:08:27,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:08:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:08:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:08:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:08:27,333 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:08:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:27,334 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:08:27,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:08:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:08:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:08:27,338 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:27,339 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, 1] [2019-12-19 05:08:27,339 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:27,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:27,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1824391938, now seen corresponding path program 1 times [2019-12-19 05:08:27,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:27,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503193383] [2019-12-19 05:08:27,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:27,540 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 05:08:27,541 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503193383] [2019-12-19 05:08:27,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:27,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:08:27,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931902852] [2019-12-19 05:08:27,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:08:27,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:27,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:08:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:08:27,543 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-19 05:08:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:27,722 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:08:27,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:08:27,723 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:08:27,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:27,726 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:08:27,726 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:08:27,727 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 05:08:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:08:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 05:08:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 05:08:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 05:08:27,740 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 05:08:27,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:27,741 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 05:08:27,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:08:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 05:08:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:08:27,742 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:27,742 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, 1] [2019-12-19 05:08:27,743 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:27,743 INFO L82 PathProgramCache]: Analyzing trace with hash 480987120, now seen corresponding path program 2 times [2019-12-19 05:08:27,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:27,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025038750] [2019-12-19 05:08:27,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:27,915 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 05:08:27,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025038750] [2019-12-19 05:08:27,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:27,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:08:27,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761011411] [2019-12-19 05:08:27,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:08:27,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:27,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:08:27,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:08:27,918 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 7 states. [2019-12-19 05:08:28,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:28,105 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 05:08:28,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:08:28,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:08:28,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:28,108 INFO L225 Difference]: With dead ends: 440 [2019-12-19 05:08:28,109 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 05:08:28,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:08:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 05:08:28,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 05:08:28,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 05:08:28,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 05:08:28,121 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 05:08:28,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:28,121 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 05:08:28,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:08:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 05:08:28,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:08:28,123 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:08:28,123 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, 1] [2019-12-19 05:08:28,124 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:08:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:08:28,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1845050856, now seen corresponding path program 3 times [2019-12-19 05:08:28,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:08:28,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615012329] [2019-12-19 05:08:28,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:08:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:08:28,263 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 05:08:28,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615012329] [2019-12-19 05:08:28,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:08:28,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:08:28,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225685615] [2019-12-19 05:08:28,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:08:28,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:08:28,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:08:28,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:08:28,266 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 05:08:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:08:28,354 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 05:08:28,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:08:28,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 05:08:28,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:08:28,359 INFO L225 Difference]: With dead ends: 200 [2019-12-19 05:08:28,360 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:08:28,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:08:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:08:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:08:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:08:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:08:28,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:08:28,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:08:28,361 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:08:28,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:08:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:08:28,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:08:28,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:08:28 BasicIcfg [2019-12-19 05:08:28,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:08:28,376 INFO L168 Benchmark]: Toolchain (without parser) took 3827.08 ms. Allocated memory was 137.4 MB in the beginning and 253.2 MB in the end (delta: 115.9 MB). Free memory was 100.5 MB in the beginning and 166.9 MB in the end (delta: -66.4 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,377 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.05 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 157.6 MB in the end (delta: -57.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.23 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,385 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,385 INFO L168 Benchmark]: RCFGBuilder took 443.40 ms. Allocated memory is still 200.8 MB. Free memory was 154.2 MB in the beginning and 133.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,387 INFO L168 Benchmark]: TraceAbstraction took 2582.81 ms. Allocated memory was 200.8 MB in the beginning and 253.2 MB in the end (delta: 52.4 MB). Free memory was 132.8 MB in the beginning and 166.9 MB in the end (delta: -34.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:08:28,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.05 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 157.6 MB in the end (delta: -57.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.23 ms. Allocated memory is still 200.8 MB. Free memory was 157.6 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 200.8 MB. Free memory was 155.5 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.40 ms. Allocated memory is still 200.8 MB. Free memory was 154.2 MB in the beginning and 133.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2582.81 ms. Allocated memory was 200.8 MB in the beginning and 253.2 MB in the end (delta: 52.4 MB). Free memory was 132.8 MB in the beginning and 166.9 MB in the end (delta: -34.1 MB). Peak memory consumption was 18.4 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 317 SDtfs, 363 SDslu, 868 SDs, 0 SdLazy, 110 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 20218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...