/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:46:44,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:46:44,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:46:44,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:46:44,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:46:44,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:46:44,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:46:44,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:46:44,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:46:44,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:46:44,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:46:44,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:46:44,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:46:44,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:46:44,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:46:44,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:46:44,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:46:44,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:46:44,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:46:44,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:46:44,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:46:44,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:46:44,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:46:44,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:46:44,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 23:46:44,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:46:44,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:46:44,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:46:44,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:46:44,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:46:44,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:46:44,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:46:44,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:46:44,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:46:44,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:46:44,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:46:44,508 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 [2019-12-26 23:46:44,522 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:46:44,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:46:44,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:46:44,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:46:44,526 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:46:44,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:46:44,527 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:46:44,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:46:44,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:46:44,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:46:44,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:46:44,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:46:44,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:46:44,528 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:46:44,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:46:44,529 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:46:44,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:46:44,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:46:44,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:46:44,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:46:44,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:46:44,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:46:44,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:46:44,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:46:44,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:46:44,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:46:44,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:46:44,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:46:44,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:46:44,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:46:44,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:46:44,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:46:44,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:46:44,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:46:44,835 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:46:44,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-26 23:46:44,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96744c86/db39d732dab7480a8a9414ca4211d0f0/FLAGf64e9f457 [2019-12-26 23:46:45,412 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:46:45,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-26 23:46:45,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96744c86/db39d732dab7480a8a9414ca4211d0f0/FLAGf64e9f457 [2019-12-26 23:46:45,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96744c86/db39d732dab7480a8a9414ca4211d0f0 [2019-12-26 23:46:45,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:46:45,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:46:45,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:46:45,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:46:45,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:46:45,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:46:45" (1/1) ... [2019-12-26 23:46:45,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b07eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:45, skipping insertion in model container [2019-12-26 23:46:45,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:46:45" (1/1) ... [2019-12-26 23:46:45,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:46:45,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:46:46,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:46:46,318 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:46:46,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:46:46,452 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:46:46,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46 WrapperNode [2019-12-26 23:46:46,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:46:46,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:46:46,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:46:46,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:46:46,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:46:46,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:46:46,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:46:46,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:46:46,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (1/1) ... [2019-12-26 23:46:46,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:46:46,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:46:46,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:46:46,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:46:46,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (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 [2019-12-26 23:46:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:46:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:46:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:46:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:46:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:46:46,601 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:46:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:46:46,601 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:46:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:46:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:46:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:46:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:46:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:46:46,604 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:46:46,988 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:46:46,988 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:46:46,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:46:46 BoogieIcfgContainer [2019-12-26 23:46:46,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:46:46,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:46:46,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:46:46,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:46:46,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:46:45" (1/3) ... [2019-12-26 23:46:46,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10442059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:46:46, skipping insertion in model container [2019-12-26 23:46:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:46:46" (2/3) ... [2019-12-26 23:46:46,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10442059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:46:46, skipping insertion in model container [2019-12-26 23:46:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:46:46" (3/3) ... [2019-12-26 23:46:46,998 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2019-12-26 23:46:47,007 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:46:47,008 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:46:47,015 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:46:47,016 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:46:47,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,044 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,045 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,045 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,045 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,046 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,046 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,047 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,048 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,048 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,049 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,049 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,053 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,053 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,054 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,054 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,058 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,058 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,058 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,059 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,061 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,061 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,062 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,062 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:46:47,075 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:46:47,092 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:46:47,092 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:46:47,092 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:46:47,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:46:47,093 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:46:47,093 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:46:47,093 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:46:47,093 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:46:47,105 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-26 23:46:47,107 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:46:47,165 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:46:47,166 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:46:47,172 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:46:47,174 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:46:47,195 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:46:47,195 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:46:47,196 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:46:47,198 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:46:47,199 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:46:48,838 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-26 23:46:48,839 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-26 23:46:48,842 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:46:48,852 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:46:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:46:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:46:48,864 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:48,865 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:48,865 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:48,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:48,872 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-26 23:46:48,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:48,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408576746] [2019-12-26 23:46:48,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:49,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408576746] [2019-12-26 23:46:49,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:49,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:46:49,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7284479] [2019-12-26 23:46:49,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:49,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:49,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:49,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:49,113 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:46:49,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:49,153 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-26 23:46:49,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:49,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:46:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:49,167 INFO L225 Difference]: With dead ends: 44 [2019-12-26 23:46:49,167 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:46:49,169 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 [2019-12-26 23:46:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:46:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 23:46:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 23:46:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-26 23:46:49,209 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-26 23:46:49,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:49,210 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-26 23:46:49,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-26 23:46:49,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:46:49,211 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:49,211 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:49,212 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash -939565689, now seen corresponding path program 1 times [2019-12-26 23:46:49,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:49,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955912647] [2019-12-26 23:46:49,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:49,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955912647] [2019-12-26 23:46:49,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:49,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:46:49,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76836144] [2019-12-26 23:46:49,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:49,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:49,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:49,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:49,330 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-26 23:46:49,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:49,348 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-26 23:46:49,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:49,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:46:49,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:49,350 INFO L225 Difference]: With dead ends: 33 [2019-12-26 23:46:49,350 INFO L226 Difference]: Without dead ends: 33 [2019-12-26 23:46:49,351 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 [2019-12-26 23:46:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-26 23:46:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-26 23:46:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-26 23:46:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-26 23:46:49,357 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-26 23:46:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:49,358 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-26 23:46:49,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-26 23:46:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:46:49,359 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:49,359 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:49,359 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:49,360 INFO L82 PathProgramCache]: Analyzing trace with hash 934712652, now seen corresponding path program 1 times [2019-12-26 23:46:49,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:49,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648486760] [2019-12-26 23:46:49,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:49,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648486760] [2019-12-26 23:46:49,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:49,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:46:49,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799272760] [2019-12-26 23:46:49,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:49,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:49,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:49,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:49,435 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-26 23:46:49,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:49,444 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-26 23:46:49,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:49,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:46:49,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:49,445 INFO L225 Difference]: With dead ends: 32 [2019-12-26 23:46:49,445 INFO L226 Difference]: Without dead ends: 32 [2019-12-26 23:46:49,446 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 [2019-12-26 23:46:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-26 23:46:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-26 23:46:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-26 23:46:49,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-26 23:46:49,451 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-26 23:46:49,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:49,451 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-26 23:46:49,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-26 23:46:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:46:49,452 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:49,452 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:49,453 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:49,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:49,453 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-26 23:46:49,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:49,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623509380] [2019-12-26 23:46:49,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:49,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623509380] [2019-12-26 23:46:49,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:49,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:46:49,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247598803] [2019-12-26 23:46:49,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:46:49,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:49,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:46:49,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:46:49,509 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-26 23:46:49,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:49,545 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-26 23:46:49,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:46:49,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:46:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:49,547 INFO L225 Difference]: With dead ends: 35 [2019-12-26 23:46:49,547 INFO L226 Difference]: Without dead ends: 21 [2019-12-26 23:46:49,549 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 [2019-12-26 23:46:49,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-26 23:46:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-26 23:46:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-26 23:46:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-26 23:46:49,555 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-26 23:46:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:49,558 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-26 23:46:49,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:46:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-26 23:46:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:46:49,559 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:49,559 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:49,559 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:49,565 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-26 23:46:49,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:49,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15913088] [2019-12-26 23:46:49,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:49,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15913088] [2019-12-26 23:46:49,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:49,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:46:49,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109241997] [2019-12-26 23:46:49,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:46:49,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:49,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:46:49,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:46:49,650 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-26 23:46:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:49,682 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-26 23:46:49,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:46:49,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:46:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:49,683 INFO L225 Difference]: With dead ends: 23 [2019-12-26 23:46:49,683 INFO L226 Difference]: Without dead ends: 15 [2019-12-26 23:46:49,684 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 [2019-12-26 23:46:49,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-26 23:46:49,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-26 23:46:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-26 23:46:49,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-26 23:46:49,690 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-26 23:46:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:49,690 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-26 23:46:49,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:46:49,690 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-26 23:46:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:46:49,691 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:46:49,691 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:46:49,691 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:46:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:46:49,692 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-26 23:46:49,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:46:49,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138723939] [2019-12-26 23:46:49,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:46:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:46:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:46:49,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138723939] [2019-12-26 23:46:49,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:46:49,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:46:49,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587418009] [2019-12-26 23:46:49,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:46:49,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:46:49,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:46:49,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:46:49,759 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-26 23:46:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:46:49,775 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-26 23:46:49,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:46:49,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:46:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:46:49,776 INFO L225 Difference]: With dead ends: 14 [2019-12-26 23:46:49,776 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:46:49,777 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 [2019-12-26 23:46:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:46:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:46:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:46:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:46:49,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:46:49,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:46:49,778 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:46:49,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:46:49,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:46:49,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:46:49,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:46:49 BasicIcfg [2019-12-26 23:46:49,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:46:49,786 INFO L168 Benchmark]: Toolchain (without parser) took 4022.58 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 101.8 MB in the beginning and 121.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:49,786 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-26 23:46:49,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.09 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 161.1 MB in the end (delta: -59.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:49,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:49,789 INFO L168 Benchmark]: Boogie Preprocessor took 24.49 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 157.3 MB in the end (delta: 950.4 kB). Peak memory consumption was 950.4 kB. Max. memory is 7.1 GB. [2019-12-26 23:46:49,790 INFO L168 Benchmark]: RCFGBuilder took 459.49 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 136.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:49,791 INFO L168 Benchmark]: TraceAbstraction took 2792.20 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.7 MB in the beginning and 121.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:46:49,795 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.09 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 161.1 MB in the end (delta: -59.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.49 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 157.3 MB in the end (delta: 950.4 kB). Peak memory consumption was 950.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 459.49 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 136.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2792.20 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.7 MB in the beginning and 121.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 504 CheckedPairsTotal, 44 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 14 SDslu, 37 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 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, 1219 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...