/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/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:30:09,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:30:09,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:30:09,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:30:09,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:30:09,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:30:09,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:30:09,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:30:09,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:30:09,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:30:09,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:30:09,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:30:09,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:30:09,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:30:09,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:30:09,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:30:09,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:30:09,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:30:09,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:30:09,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:30:09,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:30:09,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:30:09,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:30:09,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:30:09,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:30:09,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:30:09,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:30:09,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:30:09,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:30:09,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:30:09,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:30:09,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:30:09,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:30:09,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:30:09,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:30:09,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:30:09,241 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 [2019-12-27 14:30:09,256 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:30:09,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:30:09,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:30:09,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:30:09,258 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:30:09,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:30:09,258 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:30:09,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:30:09,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:30:09,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:30:09,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:30:09,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:30:09,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:30:09,260 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:30:09,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:30:09,260 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:30:09,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:30:09,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:30:09,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:30:09,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:30:09,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:30:09,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:30:09,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:30:09,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:30:09,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:30:09,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:30:09,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:30:09,263 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:30:09,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:30:09,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:30:09,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:30:09,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:30:09,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:30:09,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:30:09,554 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:30:09,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2019-12-27 14:30:09,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac33d318/60c34d4d01a34ab4870a202b879862a2/FLAG24b92cd27 [2019-12-27 14:30:10,170 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:30:10,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2019-12-27 14:30:10,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac33d318/60c34d4d01a34ab4870a202b879862a2/FLAG24b92cd27 [2019-12-27 14:30:10,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac33d318/60c34d4d01a34ab4870a202b879862a2 [2019-12-27 14:30:10,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:30:10,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:30:10,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:30:10,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:30:10,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:30:10,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:30:10" (1/1) ... [2019-12-27 14:30:10,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbc2658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:10, skipping insertion in model container [2019-12-27 14:30:10,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:30:10" (1/1) ... [2019-12-27 14:30:10,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:30:10,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:30:11,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:30:11,138 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:30:11,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:30:11,297 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:30:11,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11 WrapperNode [2019-12-27 14:30:11,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:30:11,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:30:11,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:30:11,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:30:11,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:30:11,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:30:11,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:30:11,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:30:11,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... [2019-12-27 14:30:11,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:30:11,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:30:11,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:30:11,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:30:11,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:30:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:30:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:30:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:30:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:30:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:30:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:30:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:30:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:30:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:30:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:30:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:30:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:30:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:30:11,458 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 14:30:11,830 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:30:11,830 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:30:11,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:30:11 BoogieIcfgContainer [2019-12-27 14:30:11,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:30:11,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:30:11,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:30:11,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:30:11,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:30:10" (1/3) ... [2019-12-27 14:30:11,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baaa443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:30:11, skipping insertion in model container [2019-12-27 14:30:11,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:30:11" (2/3) ... [2019-12-27 14:30:11,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baaa443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:30:11, skipping insertion in model container [2019-12-27 14:30:11,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:30:11" (3/3) ... [2019-12-27 14:30:11,845 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2019-12-27 14:30:11,853 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:30:11,854 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:30:11,861 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:30:11,862 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:30:11,889 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,890 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,890 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,890 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,891 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,891 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,892 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,892 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,892 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,892 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,893 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,893 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,894 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,894 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,894 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,894 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,895 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,895 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,900 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,901 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,901 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,901 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,907 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,907 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,908 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,908 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,922 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,923 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,923 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,923 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:30:11,939 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:30:11,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:30:11,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:30:11,956 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:30:11,956 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:30:11,956 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:30:11,956 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:30:11,956 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:30:11,956 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:30:11,968 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-27 14:30:12,052 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-27 14:30:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-27 14:30:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-27 14:30:12,072 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:30:12,073 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] [2019-12-27 14:30:12,074 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:30:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:30:12,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1039992911, now seen corresponding path program 1 times [2019-12-27 14:30:12,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:30:12,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127770342] [2019-12-27 14:30:12,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:30:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:30:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:30:12,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127770342] [2019-12-27 14:30:12,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:30:12,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:30:12,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865373468] [2019-12-27 14:30:12,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:30:12,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:30:12,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:30:12,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:30:12,499 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-27 14:30:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:30:12,619 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-27 14:30:12,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:30:12,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-27 14:30:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:30:12,647 INFO L225 Difference]: With dead ends: 1294 [2019-12-27 14:30:12,647 INFO L226 Difference]: Without dead ends: 600 [2019-12-27 14:30:12,649 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 [2019-12-27 14:30:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-27 14:30:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-27 14:30:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-27 14:30:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-27 14:30:12,778 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-27 14:30:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:30:12,779 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-27 14:30:12,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:30:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-27 14:30:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 14:30:12,783 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:30:12,784 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] [2019-12-27 14:30:12,784 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:30:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:30:12,785 INFO L82 PathProgramCache]: Analyzing trace with hash -194802381, now seen corresponding path program 1 times [2019-12-27 14:30:12,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:30:12,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596977508] [2019-12-27 14:30:12,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:30:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:30:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:30:12,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596977508] [2019-12-27 14:30:12,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:30:12,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:30:12,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744371159] [2019-12-27 14:30:12,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:30:12,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:30:12,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:30:12,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:30:12,980 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-27 14:30:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:30:13,051 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-27 14:30:13,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:30:13,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-27 14:30:13,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:30:13,058 INFO L225 Difference]: With dead ends: 600 [2019-12-27 14:30:13,058 INFO L226 Difference]: Without dead ends: 537 [2019-12-27 14:30:13,059 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 [2019-12-27 14:30:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-27 14:30:13,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-27 14:30:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-27 14:30:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-27 14:30:13,121 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-27 14:30:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:30:13,122 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-27 14:30:13,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:30:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-27 14:30:13,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:30:13,126 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:30:13,127 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] [2019-12-27 14:30:13,127 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:30:13,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:30:13,127 INFO L82 PathProgramCache]: Analyzing trace with hash 149291031, now seen corresponding path program 1 times [2019-12-27 14:30:13,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:30:13,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450684094] [2019-12-27 14:30:13,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:30:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:30:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:30:13,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450684094] [2019-12-27 14:30:13,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:30:13,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:30:13,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755312522] [2019-12-27 14:30:13,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:30:13,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:30:13,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:30:13,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:30:13,241 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-27 14:30:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:30:13,338 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-27 14:30:13,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:30:13,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-27 14:30:13,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:30:13,342 INFO L225 Difference]: With dead ends: 402 [2019-12-27 14:30:13,342 INFO L226 Difference]: Without dead ends: 348 [2019-12-27 14:30:13,343 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 [2019-12-27 14:30:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-27 14:30:13,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-27 14:30:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-27 14:30:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-27 14:30:13,362 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-27 14:30:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:30:13,363 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-27 14:30:13,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:30:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-27 14:30:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:30:13,366 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:30:13,366 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] [2019-12-27 14:30:13,366 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:30:13,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:30:13,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1292788502, now seen corresponding path program 1 times [2019-12-27 14:30:13,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:30:13,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186675159] [2019-12-27 14:30:13,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:30:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:30:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:30:13,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186675159] [2019-12-27 14:30:13,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:30:13,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:30:13,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951759011] [2019-12-27 14:30:13,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:30:13,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:30:13,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:30:13,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:30:13,558 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-27 14:30:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:30:13,670 INFO L93 Difference]: Finished difference Result 564 states and 1499 transitions. [2019-12-27 14:30:13,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:30:13,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 14:30:13,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:30:13,673 INFO L225 Difference]: With dead ends: 564 [2019-12-27 14:30:13,674 INFO L226 Difference]: Without dead ends: 267 [2019-12-27 14:30:13,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 14:30:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-12-27 14:30:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2019-12-27 14:30:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-12-27 14:30:13,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 701 transitions. [2019-12-27 14:30:13,684 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 701 transitions. Word has length 33 [2019-12-27 14:30:13,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:30:13,684 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 701 transitions. [2019-12-27 14:30:13,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:30:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 701 transitions. [2019-12-27 14:30:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:30:13,686 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:30:13,686 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] [2019-12-27 14:30:13,686 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:30:13,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:30:13,687 INFO L82 PathProgramCache]: Analyzing trace with hash 839661758, now seen corresponding path program 2 times [2019-12-27 14:30:13,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:30:13,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720432029] [2019-12-27 14:30:13,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:30:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:30:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:30:13,830 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720432029] [2019-12-27 14:30:13,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:30:13,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:30:13,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216650052] [2019-12-27 14:30:13,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:30:13,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:30:13,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:30:13,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:30:13,832 INFO L87 Difference]: Start difference. First operand 267 states and 701 transitions. Second operand 7 states. [2019-12-27 14:30:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:30:13,949 INFO L93 Difference]: Finished difference Result 438 states and 1181 transitions. [2019-12-27 14:30:13,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:30:13,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-27 14:30:13,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:30:13,953 INFO L225 Difference]: With dead ends: 438 [2019-12-27 14:30:13,954 INFO L226 Difference]: Without dead ends: 264 [2019-12-27 14:30:13,954 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-27 14:30:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-27 14:30:13,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-27 14:30:13,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-27 14:30:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-12-27 14:30:13,978 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-12-27 14:30:13,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:30:13,978 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-12-27 14:30:13,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:30:13,979 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-12-27 14:30:13,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:30:13,980 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:30:13,980 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] [2019-12-27 14:30:13,980 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:30:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:30:13,981 INFO L82 PathProgramCache]: Analyzing trace with hash 301806180, now seen corresponding path program 3 times [2019-12-27 14:30:13,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:30:13,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645039618] [2019-12-27 14:30:13,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:30:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:30:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:30:14,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645039618] [2019-12-27 14:30:14,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:30:14,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:30:14,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072907770] [2019-12-27 14:30:14,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:30:14,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:30:14,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:30:14,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:30:14,097 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-12-27 14:30:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:30:14,233 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-12-27 14:30:14,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:30:14,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-27 14:30:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:30:14,234 INFO L225 Difference]: With dead ends: 210 [2019-12-27 14:30:14,234 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:30:14,234 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:30:14,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:30:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:30:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:30:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:30:14,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-27 14:30:14,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:30:14,236 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:30:14,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:30:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:30:14,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:30:14,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:30:14 BasicIcfg [2019-12-27 14:30:14,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:30:14,245 INFO L168 Benchmark]: Toolchain (without parser) took 3718.64 ms. Allocated memory was 143.1 MB in the beginning and 254.8 MB in the end (delta: 111.7 MB). Free memory was 98.2 MB in the beginning and 182.0 MB in the end (delta: -83.8 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,246 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.24 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 98.0 MB in the beginning and 156.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.07 ms. Allocated memory is still 200.3 MB. Free memory was 156.2 MB in the beginning and 154.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,249 INFO L168 Benchmark]: Boogie Preprocessor took 24.44 ms. Allocated memory is still 200.3 MB. Free memory was 154.0 MB in the beginning and 152.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,250 INFO L168 Benchmark]: RCFGBuilder took 443.49 ms. Allocated memory is still 200.3 MB. Free memory was 152.6 MB in the beginning and 132.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,251 INFO L168 Benchmark]: TraceAbstraction took 2407.09 ms. Allocated memory was 200.3 MB in the beginning and 254.8 MB in the end (delta: 54.5 MB). Free memory was 131.9 MB in the beginning and 182.0 MB in the end (delta: -50.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-12-27 14:30:14,255 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.24 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 98.0 MB in the beginning and 156.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.07 ms. Allocated memory is still 200.3 MB. Free memory was 156.2 MB in the beginning and 154.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.44 ms. Allocated memory is still 200.3 MB. Free memory was 154.0 MB in the beginning and 152.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.49 ms. Allocated memory is still 200.3 MB. Free memory was 152.6 MB in the beginning and 132.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2407.09 ms. Allocated memory was 200.3 MB in the beginning and 254.8 MB in the end (delta: 54.5 MB). Free memory was 131.9 MB in the beginning and 182.0 MB in the end (delta: -50.2 MB). Peak memory consumption was 4.4 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 287 SDtfs, 354 SDslu, 706 SDs, 0 SdLazy, 94 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16026 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...