/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/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:18:53,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:18:53,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:18:53,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:18:53,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:18:53,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:18:53,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:18:53,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:18:53,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:18:53,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:18:53,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:18:53,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:18:53,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:18:53,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:18:53,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:18:53,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:18:53,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:18:53,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:18:53,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:18:53,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:18:53,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:18:53,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:18:53,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:18:53,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:18:53,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 00:18:53,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 00:18:53,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 00:18:53,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 00:18:53,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 00:18:53,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 00:18:53,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:18:53,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:18:53,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:18:53,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:18:53,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:18:53,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:18:53,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:18:53,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:18:53,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:18:53,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:18:53,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:18:53,319 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 00:18:53,333 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:18:53,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:18:53,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:18:53,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:18:53,335 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:18:53,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:18:53,336 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:18:53,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:18:53,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:18:53,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:18:53,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:18:53,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:18:53,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:18:53,337 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:18:53,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:18:53,337 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:18:53,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:18:53,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:18:53,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:18:53,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:18:53,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:18:53,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:18:53,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:18:53,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:18:53,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:18:53,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:18:53,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:18:53,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:18:53,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:18:53,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:18:53,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:18:53,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:18:53,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:18:53,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:18:53,620 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:18:53,621 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2019-12-27 00:18:53,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d20240c/2736ed52ef5647aaa404fae9e15f0977/FLAGbefd20a7c [2019-12-27 00:18:54,255 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:18:54,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.opt.i [2019-12-27 00:18:54,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d20240c/2736ed52ef5647aaa404fae9e15f0977/FLAGbefd20a7c [2019-12-27 00:18:54,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d20240c/2736ed52ef5647aaa404fae9e15f0977 [2019-12-27 00:18:54,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:18:54,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:18:54,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:18:54,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:18:54,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:18:54,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:18:54" (1/1) ... [2019-12-27 00:18:54,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690ee292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:54, skipping insertion in model container [2019-12-27 00:18:54,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:18:54" (1/1) ... [2019-12-27 00:18:54,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:18:54,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:18:55,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:18:55,132 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:18:55,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:18:55,291 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:18:55,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55 WrapperNode [2019-12-27 00:18:55,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:18:55,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:18:55,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:18:55,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:18:55,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:18:55,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:18:55,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:18:55,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:18:55,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (1/1) ... [2019-12-27 00:18:55,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:18:55,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:18:55,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:18:55,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:18:55,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (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 00:18:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:18:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:18:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:18:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:18:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 00:18:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 00:18:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 00:18:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 00:18:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 00:18:55,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 00:18:55,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:18:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:18:55,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:18:55,436 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 00:18:55,794 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:18:55,795 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:18:55,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:18:55 BoogieIcfgContainer [2019-12-27 00:18:55,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:18:55,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:18:55,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:18:55,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:18:55,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:18:54" (1/3) ... [2019-12-27 00:18:55,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35be7418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:18:55, skipping insertion in model container [2019-12-27 00:18:55,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:55" (2/3) ... [2019-12-27 00:18:55,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35be7418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:18:55, skipping insertion in model container [2019-12-27 00:18:55,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:18:55" (3/3) ... [2019-12-27 00:18:55,805 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2019-12-27 00:18:55,814 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:18:55,814 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:18:55,821 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:18:55,822 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:18:55,849 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,849 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,849 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,850 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,850 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,851 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,851 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,851 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,851 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,852 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,852 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,852 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,853 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,853 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,853 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,853 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,854 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,854 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,858 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,858 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,859 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,859 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,870 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,870 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,871 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,871 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,874 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,875 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,875 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,875 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:18:55,887 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:18:55,903 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:18:55,903 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:18:55,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:18:55,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:18:55,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:18:55,903 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:18:55,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:18:55,904 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:18:55,915 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 00:18:55,917 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:18:55,959 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:18:55,960 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:18:55,968 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:18:55,971 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:18:55,990 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:18:55,990 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:18:55,991 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:18:55,993 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 00:18:55,994 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:18:57,634 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-27 00:18:57,634 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 00:18:57,638 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 00:18:57,649 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 00:18:57,651 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 00:18:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:18:57,658 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:18:57,659 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:18:57,659 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:18:57,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:18:57,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-27 00:18:57,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:18:57,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681255021] [2019-12-27 00:18:57,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:18:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:18:57,890 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 00:18:57,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681255021] [2019-12-27 00:18:57,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:18:57,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:18:57,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075672336] [2019-12-27 00:18:57,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:18:57,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:18:57,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:18:57,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:18:57,916 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 00:18:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:18:57,950 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 00:18:57,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:18:57,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 00:18:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:18:57,980 INFO L225 Difference]: With dead ends: 42 [2019-12-27 00:18:57,980 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 00:18:57,981 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:18:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 00:18:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 00:18:58,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 00:18:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 00:18:58,017 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 00:18:58,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:18:58,019 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 00:18:58,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:18:58,019 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 00:18:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:18:58,020 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:18:58,020 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:18:58,020 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:18:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:18:58,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-27 00:18:58,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:18:58,021 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833010609] [2019-12-27 00:18:58,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:18:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:18:58,093 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 00:18:58,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833010609] [2019-12-27 00:18:58,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:18:58,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:18:58,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231727623] [2019-12-27 00:18:58,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:18:58,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:18:58,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:18:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:18:58,098 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 00:18:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:18:58,128 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 00:18:58,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:18:58,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 00:18:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:18:58,129 INFO L225 Difference]: With dead ends: 36 [2019-12-27 00:18:58,129 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 00:18:58,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:18:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 00:18:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 00:18:58,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 00:18:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 00:18:58,135 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 00:18:58,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:18:58,136 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 00:18:58,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:18:58,136 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 00:18:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:18:58,136 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:18:58,136 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:18:58,137 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:18:58,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:18:58,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-27 00:18:58,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:18:58,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937574724] [2019-12-27 00:18:58,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:18:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:18:58,317 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 00:18:58,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937574724] [2019-12-27 00:18:58,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:18:58,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:18:58,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107908836] [2019-12-27 00:18:58,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:18:58,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:18:58,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:18:58,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:18:58,320 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-27 00:18:58,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:18:58,365 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 00:18:58,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:18:58,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 00:18:58,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:18:58,366 INFO L225 Difference]: With dead ends: 25 [2019-12-27 00:18:58,366 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 00:18:58,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:18:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 00:18:58,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 00:18:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 00:18:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-27 00:18:58,371 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-27 00:18:58,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:18:58,371 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-27 00:18:58,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:18:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-27 00:18:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:18:58,372 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:18:58,373 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:18:58,373 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:18:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:18:58,373 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-27 00:18:58,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:18:58,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198073005] [2019-12-27 00:18:58,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:18:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:18:58,456 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 00:18:58,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198073005] [2019-12-27 00:18:58,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:18:58,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:18:58,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439767782] [2019-12-27 00:18:58,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:18:58,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:18:58,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:18:58,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:18:58,460 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-27 00:18:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:18:58,546 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-27 00:18:58,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:18:58,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 00:18:58,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:18:58,548 INFO L225 Difference]: With dead ends: 19 [2019-12-27 00:18:58,548 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 00:18:58,548 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 00:18:58,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 00:18:58,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 00:18:58,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 00:18:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 00:18:58,551 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 00:18:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:18:58,552 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 00:18:58,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:18:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 00:18:58,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:18:58,553 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:18:58,553 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:18:58,553 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:18:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:18:58,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-27 00:18:58,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:18:58,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997568023] [2019-12-27 00:18:58,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:18:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:18:58,593 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 00:18:58,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997568023] [2019-12-27 00:18:58,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:18:58,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:18:58,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737564708] [2019-12-27 00:18:58,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:18:58,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:18:58,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:18:58,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:18:58,596 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 00:18:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:18:58,611 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 00:18:58,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:18:58,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:18:58,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:18:58,613 INFO L225 Difference]: With dead ends: 18 [2019-12-27 00:18:58,613 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 00:18:58,613 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 00:18:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 00:18:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 00:18:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 00:18:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 00:18:58,616 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 00:18:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:18:58,616 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 00:18:58,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:18:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 00:18:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:18:58,617 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:18:58,617 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:18:58,617 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:18:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:18:58,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-27 00:18:58,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:18:58,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646341579] [2019-12-27 00:18:58,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:18:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:18:58,660 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 00:18:58,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646341579] [2019-12-27 00:18:58,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:18:58,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:18:58,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613821667] [2019-12-27 00:18:58,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:18:58,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:18:58,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:18:58,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:18:58,664 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 00:18:58,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:18:58,677 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 00:18:58,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:18:58,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:18:58,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:18:58,678 INFO L225 Difference]: With dead ends: 11 [2019-12-27 00:18:58,678 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:18:58,679 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 00:18:58,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:18:58,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:18:58,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:18:58,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:18:58,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 00:18:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:18:58,679 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:18:58,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:18:58,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:18:58,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:18:58,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:18:58 BasicIcfg [2019-12-27 00:18:58,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:18:58,686 INFO L168 Benchmark]: Toolchain (without parser) took 4159.54 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 102.3 MB in the beginning and 104.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,687 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.17 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 160.9 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.12 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,689 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,690 INFO L168 Benchmark]: RCFGBuilder took 431.09 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 137.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,691 INFO L168 Benchmark]: TraceAbstraction took 2886.06 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.6 MB in the beginning and 104.3 MB in the end (delta: 32.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:18:58,696 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.17 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 160.9 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.12 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.86 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.09 ms. Allocated memory is still 203.9 MB. Free memory was 157.7 MB in the beginning and 137.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2886.06 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.6 MB in the beginning and 104.3 MB in the end (delta: 32.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 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...