/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:27:06,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:27:06,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:27:06,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:27:06,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:27:06,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:27:06,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:27:06,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:27:06,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:27:06,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:27:06,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:27:06,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:27:06,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:27:06,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:27:06,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:27:06,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:27:06,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:27:06,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:27:06,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:27:06,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:27:06,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:27:06,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:27:06,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:27:06,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:27:06,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:27:06,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:27:06,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:27:06,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:27:06,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:27:06,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:27:06,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:27:06,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:27:06,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:27:06,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:27:06,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:27:06,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:27:06,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:27:06,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:27:06,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:27:06,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:27:06,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:27:06,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:27:06,563 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:27:06,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:27:06,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:27:06,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:27:06,565 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:27:06,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:27:06,566 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:27:06,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:27:06,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:27:06,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:27:06,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:27:06,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:27:06,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:27:06,567 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:27:06,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:27:06,567 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:27:06,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:27:06,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:27:06,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:27:06,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:27:06,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:27:06,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:27:06,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:27:06,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:27:06,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:27:06,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:27:06,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:27:06,570 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:27:06,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:27:06,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:27:06,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:27:06,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:27:06,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:27:06,890 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:27:06,890 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:27:06,891 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2019-12-19 04:27:06,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b932045e/0043e9da84454e508cf8934f9ba866c0/FLAG553621b2d [2019-12-19 04:27:07,518 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:27:07,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2019-12-19 04:27:07,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b932045e/0043e9da84454e508cf8934f9ba866c0/FLAG553621b2d [2019-12-19 04:27:07,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b932045e/0043e9da84454e508cf8934f9ba866c0 [2019-12-19 04:27:07,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:27:07,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:27:07,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:27:07,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:27:07,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:27:07,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:27:07" (1/1) ... [2019-12-19 04:27:07,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab71dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:07, skipping insertion in model container [2019-12-19 04:27:07,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:27:07" (1/1) ... [2019-12-19 04:27:07,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:27:07,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:27:08,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:27:08,424 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:27:08,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:27:08,563 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:27:08,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08 WrapperNode [2019-12-19 04:27:08,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:27:08,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:27:08,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:27:08,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:27:08,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:27:08,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:27:08,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:27:08,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:27:08,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... [2019-12-19 04:27:08,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:27:08,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:27:08,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:27:08,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:27:08,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:27:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:27:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:27:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:27:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:27:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:27:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:27:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:27:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:27:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:27:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:27:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:27:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:27:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:27:08,700 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:27:09,083 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:27:09,084 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:27:09,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:27:09 BoogieIcfgContainer [2019-12-19 04:27:09,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:27:09,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:27:09,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:27:09,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:27:09,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:27:07" (1/3) ... [2019-12-19 04:27:09,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f69c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:27:09, skipping insertion in model container [2019-12-19 04:27:09,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:08" (2/3) ... [2019-12-19 04:27:09,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f69c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:27:09, skipping insertion in model container [2019-12-19 04:27:09,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:27:09" (3/3) ... [2019-12-19 04:27:09,094 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2019-12-19 04:27:09,105 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:27:09,105 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:27:09,113 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:27:09,114 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:27:09,143 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,143 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,144 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,144 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,145 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,145 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,145 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,146 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,146 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,146 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,147 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,147 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,147 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,148 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,148 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,148 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,148 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,149 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,156 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,156 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,157 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,157 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,164 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,165 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,165 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,168 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,169 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,170 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:09,186 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:27:09,208 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:27:09,209 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:27:09,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:27:09,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:27:09,209 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:27:09,210 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:27:09,210 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:27:09,210 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:27:09,222 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 04:27:09,305 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 04:27:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 04:27:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:27:09,325 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:09,326 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:27:09,327 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:09,334 INFO L82 PathProgramCache]: Analyzing trace with hash 100870604, now seen corresponding path program 1 times [2019-12-19 04:27:09,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:09,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091011155] [2019-12-19 04:27:09,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:27:09,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091011155] [2019-12-19 04:27:09,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:09,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:27:09,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040803879] [2019-12-19 04:27:09,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:27:09,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:09,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:27:09,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:27:09,811 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 04:27:09,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:09,920 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 04:27:09,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:27:09,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 04:27:09,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:09,953 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 04:27:09,954 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 04:27:09,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:27:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 04:27:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 04:27:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 04:27:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 04:27:10,110 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 04:27:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:10,110 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 04:27:10,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:27:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 04:27:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:27:10,114 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:10,114 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:27:10,115 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:10,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:10,116 INFO L82 PathProgramCache]: Analyzing trace with hash -471697472, now seen corresponding path program 1 times [2019-12-19 04:27:10,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:10,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137714770] [2019-12-19 04:27:10,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:27:10,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137714770] [2019-12-19 04:27:10,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:10,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:27:10,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351750851] [2019-12-19 04:27:10,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:27:10,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:10,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:27:10,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:27:10,269 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 04:27:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:10,367 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 04:27:10,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:27:10,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 04:27:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:10,378 INFO L225 Difference]: With dead ends: 602 [2019-12-19 04:27:10,379 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 04:27:10,380 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:27:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 04:27:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 04:27:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 04:27:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 04:27:10,423 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 04:27:10,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:10,424 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 04:27:10,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:27:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 04:27:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:27:10,429 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:10,429 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:27:10,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:10,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:10,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1145104615, now seen corresponding path program 1 times [2019-12-19 04:27:10,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:10,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016526596] [2019-12-19 04:27:10,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:27:10,589 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016526596] [2019-12-19 04:27:10,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:10,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:27:10,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31303842] [2019-12-19 04:27:10,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:27:10,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:10,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:27:10,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:27:10,591 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 04:27:10,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:10,681 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 04:27:10,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:27:10,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 04:27:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:10,684 INFO L225 Difference]: With dead ends: 404 [2019-12-19 04:27:10,684 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 04:27:10,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:27:10,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 04:27:10,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 04:27:10,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 04:27:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 04:27:10,696 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 04:27:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:10,697 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 04:27:10,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:27:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 04:27:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:27:10,698 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:10,699 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:27:10,699 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:10,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:10,699 INFO L82 PathProgramCache]: Analyzing trace with hash 608973843, now seen corresponding path program 1 times [2019-12-19 04:27:10,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:10,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56891301] [2019-12-19 04:27:10,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:27:10,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56891301] [2019-12-19 04:27:10,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:10,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:27:10,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933652848] [2019-12-19 04:27:10,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:27:10,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:10,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:27:10,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:27:10,859 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-12-19 04:27:10,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:10,970 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 04:27:10,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:27:10,971 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:27:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:10,973 INFO L225 Difference]: With dead ends: 521 [2019-12-19 04:27:10,974 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 04:27:10,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:27:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 04:27:10,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 04:27:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 04:27:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 04:27:10,986 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 04:27:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:10,987 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 04:27:10,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:27:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 04:27:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:27:10,988 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:10,989 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:27:10,989 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:10,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1362281377, now seen corresponding path program 2 times [2019-12-19 04:27:10,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:10,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083060987] [2019-12-19 04:27:10,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:27:11,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083060987] [2019-12-19 04:27:11,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:11,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:27:11,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613813594] [2019-12-19 04:27:11,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:27:11,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:11,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:27:11,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:27:11,227 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-12-19 04:27:11,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:11,393 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 04:27:11,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:27:11,393 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:27:11,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:11,395 INFO L225 Difference]: With dead ends: 440 [2019-12-19 04:27:11,397 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 04:27:11,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:27:11,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 04:27:11,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 04:27:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 04:27:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 04:27:11,407 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 04:27:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:11,408 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 04:27:11,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:27:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 04:27:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:27:11,409 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:11,409 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:27:11,412 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:11,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:11,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1957742869, now seen corresponding path program 3 times [2019-12-19 04:27:11,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:11,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102207404] [2019-12-19 04:27:11,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:27:11,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102207404] [2019-12-19 04:27:11,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:11,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:27:11,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344845537] [2019-12-19 04:27:11,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:27:11,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:11,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:27:11,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:27:11,598 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 04:27:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:11,688 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 04:27:11,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:27:11,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:27:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:11,689 INFO L225 Difference]: With dead ends: 200 [2019-12-19 04:27:11,689 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:27:11,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:27:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:27:11,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:27:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:27:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:27:11,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 04:27:11,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:11,691 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:27:11,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:27:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:27:11,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:27:11,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:27:11 BasicIcfg [2019-12-19 04:27:11,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:27:11,706 INFO L168 Benchmark]: Toolchain (without parser) took 3858.17 ms. Allocated memory was 143.7 MB in the beginning and 256.9 MB in the end (delta: 113.2 MB). Free memory was 99.9 MB in the beginning and 175.9 MB in the end (delta: -76.0 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,707 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.86 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 157.4 MB in the end (delta: -58.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.63 ms. Allocated memory is still 200.8 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,714 INFO L168 Benchmark]: Boogie Preprocessor took 25.37 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,715 INFO L168 Benchmark]: RCFGBuilder took 447.73 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 133.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,716 INFO L168 Benchmark]: TraceAbstraction took 2614.85 ms. Allocated memory was 200.8 MB in the beginning and 256.9 MB in the end (delta: 56.1 MB). Free memory was 132.7 MB in the beginning and 175.9 MB in the end (delta: -43.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:11,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.86 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 157.4 MB in the end (delta: -58.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.63 ms. Allocated memory is still 200.8 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.37 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.73 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 133.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2614.85 ms. Allocated memory was 200.8 MB in the beginning and 256.9 MB in the end (delta: 56.1 MB). Free memory was 132.7 MB in the beginning and 175.9 MB in the end (delta: -43.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 395 SDslu, 764 SDs, 0 SdLazy, 113 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 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...