/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:28:00,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:28:00,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:28:00,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:28:00,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:28:00,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:28:00,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:28:00,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:28:00,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:28:00,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:28:00,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:28:00,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:28:00,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:28:00,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:28:00,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:28:00,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:28:00,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:28:00,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:28:00,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:28:00,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:28:00,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:28:00,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:28:00,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:28:00,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:28:00,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:28:00,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:28:00,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:28:00,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:28:00,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:28:00,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:28:00,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:28:00,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:28:00,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:28:00,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:28:00,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:28:00,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:28:00,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:28:00,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:28:00,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:28:00,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:28:00,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:28:00,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 11:28:00,435 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:28:00,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:28:00,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:28:00,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:28:00,437 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:28:00,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:28:00,437 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:28:00,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:28:00,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:28:00,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:28:00,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:28:00,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:28:00,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:28:00,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:28:00,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:28:00,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:28:00,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:28:00,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:28:00,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:28:00,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:28:00,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:28:00,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:28:00,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:28:00,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:28:00,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:28:00,441 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:28:00,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:28:00,441 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:28:00,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:28:00,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:28:00,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:28:00,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:28:00,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:28:00,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:28:00,739 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:28:00,740 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-04-18 11:28:00,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0f10295/1335cf5d919644fe981a8b89684b5354/FLAGc9d321762 [2020-04-18 11:28:01,296 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:28:01,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2020-04-18 11:28:01,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0f10295/1335cf5d919644fe981a8b89684b5354/FLAGc9d321762 [2020-04-18 11:28:01,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b0f10295/1335cf5d919644fe981a8b89684b5354 [2020-04-18 11:28:01,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:28:01,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:28:01,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:28:01,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:28:01,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:28:01,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:28:01" (1/1) ... [2020-04-18 11:28:01,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6b510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:01, skipping insertion in model container [2020-04-18 11:28:01,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:28:01" (1/1) ... [2020-04-18 11:28:01,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:28:01,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:28:02,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:28:02,140 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:28:02,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:28:02,281 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:28:02,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02 WrapperNode [2020-04-18 11:28:02,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:28:02,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:28:02,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:28:02,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:28:02,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:28:02,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:28:02,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:28:02,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:28:02,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (1/1) ... [2020-04-18 11:28:02,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:28:02,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:28:02,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:28:02,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:28:02,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (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 [2020-04-18 11:28:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:28:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 11:28:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:28:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:28:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 11:28:02,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 11:28:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 11:28:02,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 11:28:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 11:28:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:28:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:28:02,429 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:28:02,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:28:02,776 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 11:28:02,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:28:02 BoogieIcfgContainer [2020-04-18 11:28:02,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:28:02,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:28:02,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:28:02,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:28:02,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:28:01" (1/3) ... [2020-04-18 11:28:02,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be08bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:28:02, skipping insertion in model container [2020-04-18 11:28:02,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:28:02" (2/3) ... [2020-04-18 11:28:02,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be08bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:28:02, skipping insertion in model container [2020-04-18 11:28:02,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:28:02" (3/3) ... [2020-04-18 11:28:02,792 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2020-04-18 11:28:02,800 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:28:02,800 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:28:02,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 11:28:02,807 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:28:02,828 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,828 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,829 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,829 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,829 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,829 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,830 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,830 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,830 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,830 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,834 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,835 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,835 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,841 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,841 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,842 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:28:02,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 11:28:02,869 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:28:02,869 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:28:02,870 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:28:02,870 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:28:02,870 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:28:02,870 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:28:02,870 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:28:02,870 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:28:02,889 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-18 11:28:02,891 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 11:28:02,929 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 11:28:02,929 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:28:02,933 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 11:28:02,936 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 11:28:02,958 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 11:28:02,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 11:28:02,960 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 11:28:02,962 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 11:28:02,963 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 11:28:04,464 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-04-18 11:28:04,464 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-04-18 11:28:04,468 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 11:28:04,480 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 11:28:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 11:28:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:28:04,488 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:28:04,489 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 11:28:04,490 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:28:04,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:04,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-04-18 11:28:04,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:28:04,503 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [648286744] [2020-04-18 11:28:04,518 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:04,529 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:28:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 11:28:04,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:28:04,531 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:28:04,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:04,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 2 times [2020-04-18 11:28:04,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:28:04,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979632132] [2020-04-18 11:28:04,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:28:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:28:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:28:04,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979632132] [2020-04-18 11:28:04,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:28:04,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 11:28:04,753 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:28:04,754 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:04,755 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:28:04,755 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:28:04,764 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:28:04,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:28:04,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:28:04,770 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 11:28:04,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:04,774 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 11:28:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 11:28:04,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:28:04,775 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [648286744] [2020-04-18 11:28:04,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:28:04,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 11:28:04,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [648286744] [2020-04-18 11:28:04,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:28:04,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:28:04,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:28:04,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:28:04,783 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-18 11:28:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:04,802 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-04-18 11:28:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:28:04,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 11:28:04,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:28:04,813 INFO L225 Difference]: With dead ends: 70 [2020-04-18 11:28:04,814 INFO L226 Difference]: Without dead ends: 54 [2020-04-18 11:28:04,815 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:28:04,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-18 11:28:04,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-18 11:28:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-18 11:28:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-04-18 11:28:04,857 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-04-18 11:28:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:28:04,858 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-04-18 11:28:04,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:28:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-04-18 11:28:04,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:28:04,859 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:28:04,859 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:28:04,859 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:28:04,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:04,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-04-18 11:28:04,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:28:04,860 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [155256569] [2020-04-18 11:28:04,861 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:04,862 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 11 transitions. [2020-04-18 11:28:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 11:28:04,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-18 11:28:04,863 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:28:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 2 times [2020-04-18 11:28:04,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:28:04,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21699188] [2020-04-18 11:28:04,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:28:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:28:04,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:28:04,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21699188] [2020-04-18 11:28:04,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:28:04,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:28:04,939 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:28:04,939 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:04,941 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-04-18 11:28:04,943 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:28:04,952 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:28:04,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:28:04,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:28:04,953 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-04-18 11:28:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:04,967 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-04-18 11:28:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-04-18 11:28:04,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:28:04,968 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [155256569] [2020-04-18 11:28:04,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:28:04,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:28:04,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [155256569] [2020-04-18 11:28:04,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 11:28:04,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:28:04,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:28:04,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:28:04,971 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-04-18 11:28:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:04,983 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-04-18 11:28:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 11:28:04,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-04-18 11:28:04,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:28:04,985 INFO L225 Difference]: With dead ends: 60 [2020-04-18 11:28:04,985 INFO L226 Difference]: Without dead ends: 36 [2020-04-18 11:28:04,986 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:28:04,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-18 11:28:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-18 11:28:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-18 11:28:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-04-18 11:28:04,992 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-04-18 11:28:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:28:04,992 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-04-18 11:28:04,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 11:28:04,993 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-04-18 11:28:04,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:28:04,993 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:28:04,993 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:28:04,994 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:28:04,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:04,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-04-18 11:28:04,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:28:04,995 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [709672066] [2020-04-18 11:28:04,995 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:04,996 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 45 transitions. [2020-04-18 11:28:04,997 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 11:28:04,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:28:04,997 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:28:04,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:04,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1045260811, now seen corresponding path program 2 times [2020-04-18 11:28:04,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:28:04,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952575840] [2020-04-18 11:28:04,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:28:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:28:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:28:05,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952575840] [2020-04-18 11:28:05,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:28:05,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 11:28:05,052 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:28:05,052 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:05,055 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-04-18 11:28:05,056 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:28:05,063 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:28:05,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 11:28:05,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 11:28:05,064 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 4 states. [2020-04-18 11:28:05,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:05,074 INFO L93 Difference]: Finished difference Result 29 states and 47 transitions. [2020-04-18 11:28:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2020-04-18 11:28:05,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:28:05,076 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:28:05,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:28:05,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 3 times [2020-04-18 11:28:05,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:28:05,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279387485] [2020-04-18 11:28:05,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:28:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:28:05,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:28:05,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279387485] [2020-04-18 11:28:05,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:28:05,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:28:05,161 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:28:05,162 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:28:05,164 INFO L259 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-04-18 11:28:05,164 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:28:05,218 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 11:28:05,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:28:05,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:28:05,219 INFO L87 Difference]: Start difference. First operand 29 states and 47 transitions. Second operand 5 states. [2020-04-18 11:28:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:05,230 INFO L93 Difference]: Finished difference Result 29 states and 47 transitions. [2020-04-18 11:28:05,231 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2020-04-18 11:28:05,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:28:05,232 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [709672066] [2020-04-18 11:28:05,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:28:05,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:28:05,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [709672066] [2020-04-18 11:28:05,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 11:28:05,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:28:05,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:28:05,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-04-18 11:28:05,233 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 7 states. [2020-04-18 11:28:05,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:28:05,275 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-04-18 11:28:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 11:28:05,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-04-18 11:28:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:28:05,284 INFO L225 Difference]: With dead ends: 30 [2020-04-18 11:28:05,284 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 11:28:05,285 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-04-18 11:28:05,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 11:28:05,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 11:28:05,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 11:28:05,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 11:28:05,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-18 11:28:05,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:28:05,287 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 11:28:05,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 11:28:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 11:28:05,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:28:05,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:28:05 BasicIcfg [2020-04-18 11:28:05,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:28:05,299 INFO L168 Benchmark]: Toolchain (without parser) took 3709.48 ms. Allocated memory was 144.7 MB in the beginning and 246.9 MB in the end (delta: 102.2 MB). Free memory was 101.4 MB in the beginning and 143.1 MB in the end (delta: -41.7 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,300 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.20 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.4 MB in the beginning and 159.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.79 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,307 INFO L168 Benchmark]: Boogie Preprocessor took 25.66 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,309 INFO L168 Benchmark]: RCFGBuilder took 423.40 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 136.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,310 INFO L168 Benchmark]: TraceAbstraction took 2511.22 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 135.5 MB in the beginning and 143.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:28:05,317 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.20 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.4 MB in the beginning and 159.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.79 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.66 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.40 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 136.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2511.22 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 135.5 MB in the beginning and 143.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 368 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 24 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 33 SDtfs, 45 SDslu, 30 SDs, 0 SdLazy, 14 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...