/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:37:33,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:37:33,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:37:33,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:37:33,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:37:33,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:37:33,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:37:33,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:37:33,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:37:33,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:37:33,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:37:33,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:37:33,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:37:33,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:37:33,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:37:33,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:37:33,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:37:33,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:37:33,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:37:33,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:37:33,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:37:33,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:37:33,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:37:33,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:37:33,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-26 23:37:33,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-26 23:37:33,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-26 23:37:33,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-26 23:37:33,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-26 23:37:33,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-26 23:37:33,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:37:33,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:37:33,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:37:33,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:37:33,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:37:33,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:37:33,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:37:33,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:37:33,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:37:33,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:37:33,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:37:33,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:37:33,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:37:33,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:37:33,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:37:33,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:37:33,302 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:37:33,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:37:33,303 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:37:33,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:37:33,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:37:33,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:37:33,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:37:33,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:37:33,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:37:33,305 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:37:33,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:37:33,305 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:37:33,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:37:33,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:37:33,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:37:33,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:37:33,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:37:33,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:37:33,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:37:33,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:37:33,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:37:33,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:37:33,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:37:33,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:37:33,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:37:33,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:37:33,640 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:37:33,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:37:33,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:37:33,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:37:33,667 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:37:33,668 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2019-12-26 23:37:33,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19444edaf/ea9692cb9c53495daa78a7f5290ac1e2/FLAG9d3773529 [2019-12-26 23:37:34,220 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:37:34,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2019-12-26 23:37:34,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19444edaf/ea9692cb9c53495daa78a7f5290ac1e2/FLAG9d3773529 [2019-12-26 23:37:34,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19444edaf/ea9692cb9c53495daa78a7f5290ac1e2 [2019-12-26 23:37:34,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:37:34,561 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:37:34,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:37:34,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:37:34,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:37:34,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:37:34" (1/1) ... [2019-12-26 23:37:34,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c624005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:34, skipping insertion in model container [2019-12-26 23:37:34,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:37:34" (1/1) ... [2019-12-26 23:37:34,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:37:34,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:37:35,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:37:35,222 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:37:35,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:37:35,349 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:37:35,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35 WrapperNode [2019-12-26 23:37:35,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:37:35,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:37:35,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:37:35,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:37:35,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:37:35,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:37:35,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:37:35,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:37:35,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... [2019-12-26 23:37:35,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:37:35,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:37:35,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:37:35,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:37:35,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:37:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:37:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:37:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:37:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:37:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:37:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:37:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:37:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:37:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:37:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:37:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:37:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:37:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:37:35,498 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:37:35,847 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:37:35,847 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:37:35,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:37:35 BoogieIcfgContainer [2019-12-26 23:37:35,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:37:35,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:37:35,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:37:35,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:37:35,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:37:34" (1/3) ... [2019-12-26 23:37:35,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2560b7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:37:35, skipping insertion in model container [2019-12-26 23:37:35,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:37:35" (2/3) ... [2019-12-26 23:37:35,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2560b7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:37:35, skipping insertion in model container [2019-12-26 23:37:35,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:37:35" (3/3) ... [2019-12-26 23:37:35,857 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2019-12-26 23:37:35,868 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:37:35,868 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:37:35,879 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:37:35,880 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:37:35,926 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,928 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,928 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,929 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,929 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,930 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,930 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,931 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,931 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,931 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,931 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,932 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,932 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,932 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,933 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,933 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,934 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,934 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,939 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,939 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,940 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,940 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,946 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,946 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,947 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,947 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,949 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,949 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,949 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,950 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:37:35,965 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:37:35,983 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:37:35,983 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:37:35,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:37:35,984 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:37:35,984 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:37:35,984 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:37:35,984 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:37:35,984 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:37:35,998 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-26 23:37:36,000 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-26 23:37:36,045 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-26 23:37:36,046 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:37:36,052 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:37:36,054 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-26 23:37:36,073 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-26 23:37:36,074 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:37:36,076 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:37:36,078 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:37:36,079 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:37:37,437 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-26 23:37:37,617 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-26 23:37:37,618 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-26 23:37:37,621 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:37:37,635 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:37:37,637 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:37:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:37:37,647 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:37:37,648 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:37:37,648 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:37:37,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:37:37,653 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-26 23:37:37,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:37:37,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412198450] [2019-12-26 23:37:37,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:37:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:37:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:37:37,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412198450] [2019-12-26 23:37:37,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:37:37,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:37:37,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221601974] [2019-12-26 23:37:37,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:37:37,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:37:37,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:37:37,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:37:37,881 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:37:37,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:37:37,919 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-26 23:37:37,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:37:37,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:37:37,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:37:37,948 INFO L225 Difference]: With dead ends: 42 [2019-12-26 23:37:37,950 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:37:37,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:37:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:37:37,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:37:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:37:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:37:38,003 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-26 23:37:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:37:38,004 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:37:38,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:37:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:37:38,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:37:38,008 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:37:38,008 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:37:38,008 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:37:38,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:37:38,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1647367954, now seen corresponding path program 1 times [2019-12-26 23:37:38,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:37:38,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099770748] [2019-12-26 23:37:38,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:37:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:37:38,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:37:38,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099770748] [2019-12-26 23:37:38,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:37:38,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:37:38,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873850270] [2019-12-26 23:37:38,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:37:38,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:37:38,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:37:38,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:37:38,160 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-26 23:37:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:37:38,190 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-26 23:37:38,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:37:38,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-26 23:37:38,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:37:38,192 INFO L225 Difference]: With dead ends: 39 [2019-12-26 23:37:38,192 INFO L226 Difference]: Without dead ends: 31 [2019-12-26 23:37:38,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:37:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-26 23:37:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-26 23:37:38,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-26 23:37:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-26 23:37:38,204 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-26 23:37:38,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:37:38,205 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-26 23:37:38,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:37:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-26 23:37:38,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:37:38,206 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:37:38,207 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:37:38,207 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:37:38,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:37:38,208 INFO L82 PathProgramCache]: Analyzing trace with hash 445286946, now seen corresponding path program 1 times [2019-12-26 23:37:38,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:37:38,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77514238] [2019-12-26 23:37:38,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:37:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:37:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:37:38,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77514238] [2019-12-26 23:37:38,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:37:38,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:37:38,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171991074] [2019-12-26 23:37:38,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:37:38,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:37:38,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:37:38,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:37:38,300 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-26 23:37:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:37:38,327 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-26 23:37:38,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 23:37:38,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-26 23:37:38,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:37:38,328 INFO L225 Difference]: With dead ends: 40 [2019-12-26 23:37:38,328 INFO L226 Difference]: Without dead ends: 30 [2019-12-26 23:37:38,329 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:37:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-26 23:37:38,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-26 23:37:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:37:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-26 23:37:38,334 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-26 23:37:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:37:38,334 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-26 23:37:38,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:37:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-26 23:37:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:37:38,335 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:37:38,335 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:37:38,335 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:37:38,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:37:38,336 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-26 23:37:38,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:37:38,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5433235] [2019-12-26 23:37:38,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:37:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:37:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:37:38,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5433235] [2019-12-26 23:37:38,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:37:38,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:37:38,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367072531] [2019-12-26 23:37:38,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:37:38,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:37:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:37:38,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:37:38,378 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 3 states. [2019-12-26 23:37:38,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:37:38,391 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-26 23:37:38,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:37:38,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:37:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:37:38,392 INFO L225 Difference]: With dead ends: 29 [2019-12-26 23:37:38,392 INFO L226 Difference]: Without dead ends: 17 [2019-12-26 23:37:38,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:37:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-26 23:37:38,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-26 23:37:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-26 23:37:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-26 23:37:38,396 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-26 23:37:38,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:37:38,396 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-26 23:37:38,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:37:38,396 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-26 23:37:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:37:38,397 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:37:38,397 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:37:38,397 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:37:38,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:37:38,398 INFO L82 PathProgramCache]: Analyzing trace with hash 142093797, now seen corresponding path program 1 times [2019-12-26 23:37:38,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:37:38,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46208535] [2019-12-26 23:37:38,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:37:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:37:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:37:38,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46208535] [2019-12-26 23:37:38,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:37:38,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 23:37:38,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586368309] [2019-12-26 23:37:38,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:37:38,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:37:38,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:37:38,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:37:38,450 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-26 23:37:38,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:37:38,461 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-26 23:37:38,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:37:38,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:37:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:37:38,462 INFO L225 Difference]: With dead ends: 16 [2019-12-26 23:37:38,462 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:37:38,462 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:37:38,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:37:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:37:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:37:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:37:38,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:37:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:37:38,464 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:37:38,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:37:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:37:38,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:37:38,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:37:38 BasicIcfg [2019-12-26 23:37:38,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:37:38,471 INFO L168 Benchmark]: Toolchain (without parser) took 3909.41 ms. Allocated memory was 143.7 MB in the beginning and 248.5 MB in the end (delta: 104.9 MB). Free memory was 99.8 MB in the beginning and 149.9 MB in the end (delta: -50.1 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,472 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.19 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.4 MB in the beginning and 159.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.04 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,475 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,476 INFO L168 Benchmark]: RCFGBuilder took 420.82 ms. Allocated memory is still 202.4 MB. Free memory was 155.7 MB in the beginning and 135.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,477 INFO L168 Benchmark]: TraceAbstraction took 2618.56 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 134.5 MB in the beginning and 149.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:37:38,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.19 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.4 MB in the beginning and 159.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.04 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.94 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 420.82 ms. Allocated memory is still 202.4 MB. Free memory was 155.7 MB in the beginning and 135.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2618.56 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 134.5 MB in the beginning and 149.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 25 SDslu, 56 SDs, 0 SdLazy, 30 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 919 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...