/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:19:05,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:19:05,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:19:05,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:19:05,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:19:05,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:19:05,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:19:05,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:19:05,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:19:05,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:19:05,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:19:05,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:19:05,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:19:05,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:19:05,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:19:05,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:19:05,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:19:05,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:19:05,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:19:05,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:19:05,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:19:05,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:19:05,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:19:05,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:19:05,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:19:05,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:19:05,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:19:05,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:19:05,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:19:05,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:19:05,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:19:05,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:19:05,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:19:05,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:19:05,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:19:05,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:19:05,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-27 00:19:05,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:19:05,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:19:05,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:19:05,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:19:05,409 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:19:05,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:19:05,409 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:19:05,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:19:05,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:19:05,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:19:05,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:19:05,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:19:05,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:19:05,411 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:19:05,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:19:05,411 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:19:05,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:19:05,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:19:05,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:19:05,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:19:05,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:19:05,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:19:05,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:19:05,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:19:05,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:19:05,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:19:05,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:19:05,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:19:05,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:19:05,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:19:05,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:19:05,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:19:05,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:19:05,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:19:05,706 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:19:05,708 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2019-12-27 00:19:05,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120365903/d81196a789834adca0333e8818b2606e/FLAGda1fb0e4e [2019-12-27 00:19:06,213 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:19:06,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2019-12-27 00:19:06,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120365903/d81196a789834adca0333e8818b2606e/FLAGda1fb0e4e [2019-12-27 00:19:06,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120365903/d81196a789834adca0333e8818b2606e [2019-12-27 00:19:06,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:19:06,568 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:19:06,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:19:06,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:19:06,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:19:06,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:19:06" (1/1) ... [2019-12-27 00:19:06,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c507e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:06, skipping insertion in model container [2019-12-27 00:19:06,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:19:06" (1/1) ... [2019-12-27 00:19:06,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:19:06,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:19:07,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:19:07,125 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:19:07,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:19:07,276 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:19:07,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07 WrapperNode [2019-12-27 00:19:07,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:19:07,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:19:07,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:19:07,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:19:07,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:19:07,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:19:07,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:19:07,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:19:07,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... [2019-12-27 00:19:07,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:19:07,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:19:07,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:19:07,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:19:07,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:19:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:19:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:19:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:19:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:19:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 00:19:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 00:19:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 00:19:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 00:19:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:19:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:19:07,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:19:07,454 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:19:07,886 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:19:07,887 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:19:07,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:19:07 BoogieIcfgContainer [2019-12-27 00:19:07,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:19:07,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:19:07,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:19:07,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:19:07,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:19:06" (1/3) ... [2019-12-27 00:19:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfa62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:19:07, skipping insertion in model container [2019-12-27 00:19:07,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:07" (2/3) ... [2019-12-27 00:19:07,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfa62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:19:07, skipping insertion in model container [2019-12-27 00:19:07,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:19:07" (3/3) ... [2019-12-27 00:19:07,897 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_rmo.opt.i [2019-12-27 00:19:07,910 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:19:07,910 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:19:07,926 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:19:07,928 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:19:07,950 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,950 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,951 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,951 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,952 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,952 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,953 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,953 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,953 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,954 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,957 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,958 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,958 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,959 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,964 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,965 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,965 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,965 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:07,979 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 00:19:07,997 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:19:07,997 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:19:07,997 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:19:07,998 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:19:07,998 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:19:07,998 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:19:07,998 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:19:07,998 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:19:08,012 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 43 transitions [2019-12-27 00:19:08,014 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-27 00:19:08,053 INFO L132 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-27 00:19:08,054 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:19:08,059 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-27 00:19:08,061 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-27 00:19:08,077 INFO L132 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-27 00:19:08,077 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:19:08,079 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-27 00:19:08,080 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 234 [2019-12-27 00:19:08,082 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:19:08,807 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2019-12-27 00:19:09,413 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 00:19:09,572 INFO L206 etLargeBlockEncoding]: Checked pairs total: 242 [2019-12-27 00:19:09,572 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2019-12-27 00:19:09,576 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 11 transitions [2019-12-27 00:19:09,585 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22 states. [2019-12-27 00:19:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-27 00:19:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 00:19:09,595 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:09,596 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-27 00:19:09,597 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:09,604 INFO L82 PathProgramCache]: Analyzing trace with hash 550784875, now seen corresponding path program 1 times [2019-12-27 00:19:09,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:09,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123739864] [2019-12-27 00:19:09,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:09,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123739864] [2019-12-27 00:19:09,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:09,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:19:09,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216173111] [2019-12-27 00:19:09,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:09,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:09,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:09,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:09,975 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2019-12-27 00:19:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:10,039 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 00:19:10,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:10,041 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-27 00:19:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:10,050 INFO L225 Difference]: With dead ends: 23 [2019-12-27 00:19:10,050 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 00:19:10,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:19:10,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 00:19:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 00:19:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 00:19:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-12-27 00:19:10,082 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 22 transitions. Word has length 6 [2019-12-27 00:19:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:10,083 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-27 00:19:10,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2019-12-27 00:19:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 00:19:10,084 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:10,084 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:10,084 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:10,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:10,085 INFO L82 PathProgramCache]: Analyzing trace with hash -105739058, now seen corresponding path program 1 times [2019-12-27 00:19:10,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:10,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54082371] [2019-12-27 00:19:10,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:10,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54082371] [2019-12-27 00:19:10,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:10,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:19:10,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797790363] [2019-12-27 00:19:10,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:19:10,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:10,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:19:10,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:19:10,205 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. Second operand 5 states. [2019-12-27 00:19:10,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:10,255 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-27 00:19:10,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:19:10,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-27 00:19:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:10,257 INFO L225 Difference]: With dead ends: 15 [2019-12-27 00:19:10,257 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 00:19:10,258 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:19:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 00:19:10,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 00:19:10,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 00:19:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-27 00:19:10,261 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2019-12-27 00:19:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:10,261 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-27 00:19:10,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:19:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-27 00:19:10,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:19:10,262 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:10,262 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:10,262 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:10,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1017118813, now seen corresponding path program 1 times [2019-12-27 00:19:10,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:10,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822281861] [2019-12-27 00:19:10,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:10,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822281861] [2019-12-27 00:19:10,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:10,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:19:10,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969107123] [2019-12-27 00:19:10,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:10,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:10,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:10,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:10,320 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-12-27 00:19:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:10,337 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-27 00:19:10,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:10,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 00:19:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:10,338 INFO L225 Difference]: With dead ends: 14 [2019-12-27 00:19:10,338 INFO L226 Difference]: Without dead ends: 9 [2019-12-27 00:19:10,339 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:19:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-27 00:19:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-27 00:19:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-27 00:19:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-12-27 00:19:10,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2019-12-27 00:19:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:10,341 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-12-27 00:19:10,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-27 00:19:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:19:10,342 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:10,342 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:10,343 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:10,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1025277703, now seen corresponding path program 2 times [2019-12-27 00:19:10,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:10,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408573401] [2019-12-27 00:19:10,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:10,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408573401] [2019-12-27 00:19:10,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:10,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:19:10,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899989237] [2019-12-27 00:19:10,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:10,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:10,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:10,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:10,395 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 4 states. [2019-12-27 00:19:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:10,407 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-12-27 00:19:10,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:10,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 00:19:10,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:10,408 INFO L225 Difference]: With dead ends: 8 [2019-12-27 00:19:10,408 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:19:10,409 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:19:10,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:19:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:19:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:19:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:19:10,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-27 00:19:10,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:10,410 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:19:10,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:19:10,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:19:10,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:19:10 BasicIcfg [2019-12-27 00:19:10,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:19:10,416 INFO L168 Benchmark]: Toolchain (without parser) took 3848.34 ms. Allocated memory was 144.2 MB in the beginning and 249.0 MB in the end (delta: 104.9 MB). Free memory was 99.9 MB in the beginning and 176.9 MB in the end (delta: -77.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,417 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.63 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 159.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.43 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,420 INFO L168 Benchmark]: Boogie Preprocessor took 41.69 ms. Allocated memory is still 201.9 MB. Free memory was 157.2 MB in the beginning and 155.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,421 INFO L168 Benchmark]: RCFGBuilder took 523.02 ms. Allocated memory is still 201.9 MB. Free memory was 155.8 MB in the beginning and 137.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,422 INFO L168 Benchmark]: TraceAbstraction took 2524.96 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 136.7 MB in the beginning and 176.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:10,426 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.63 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 159.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.43 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.69 ms. Allocated memory is still 201.9 MB. Free memory was 157.2 MB in the beginning and 155.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 523.02 ms. Allocated memory is still 201.9 MB. Free memory was 155.8 MB in the beginning and 137.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2524.96 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 136.7 MB in the beginning and 176.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 49 ProgramPointsBefore, 15 ProgramPointsAfterwards, 43 TransitionsBefore, 11 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 242 CheckedPairsTotal, 37 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 21 SDslu, 26 SDs, 0 SdLazy, 29 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...