/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:01:30,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:01:30,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:01:30,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:01:30,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:01:30,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:01:30,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:01:30,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:01:30,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:01:30,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:01:30,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:01:30,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:01:30,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:01:30,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:01:30,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:01:30,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:01:30,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:01:30,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:01:30,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:01:30,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:01:30,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:01:30,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:01:30,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:01:30,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:01:30,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:01:30,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:01:30,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:01:30,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:01:30,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:01:30,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:01:30,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:01:30,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:01:30,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:01:30,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:01:30,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:01:30,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:01:30,998 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-MCR.epf [2019-12-28 05:01:31,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:01:31,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:01:31,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:01:31,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:01:31,027 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:01:31,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:01:31,027 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:01:31,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:01:31,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:01:31,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:01:31,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:01:31,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:01:31,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:01:31,030 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:01:31,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:01:31,031 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:01:31,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:01:31,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:01:31,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:01:31,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:01:31,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:01:31,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:01:31,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:01:31,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:01:31,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:01:31,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:01:31,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:01:31,034 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:01:31,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:01:31,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:01:31,036 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:01:31,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:01:31,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:01:31,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:01:31,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:01:31,338 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:01:31,339 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:01:31,339 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2019-12-28 05:01:31,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7c74604/6e30a336017040079178951461b39fec/FLAGf55bb97e7 [2019-12-28 05:01:31,935 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:01:31,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2019-12-28 05:01:31,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7c74604/6e30a336017040079178951461b39fec/FLAGf55bb97e7 [2019-12-28 05:01:32,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7c74604/6e30a336017040079178951461b39fec [2019-12-28 05:01:32,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:01:32,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:01:32,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:01:32,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:01:32,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:01:32,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2257a400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32, skipping insertion in model container [2019-12-28 05:01:32,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:01:32,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:01:32,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:01:32,698 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:01:32,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:01:32,842 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:01:32,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32 WrapperNode [2019-12-28 05:01:32,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:01:32,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:01:32,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:01:32,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:01:32,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:01:32,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:01:32,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:01:32,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:01:32,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (1/1) ... [2019-12-28 05:01:32,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:01:32,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:01:32,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:01:32,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:01:32,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (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 [2019-12-28 05:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:01:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:01:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:01:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:01:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:01:33,000 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:01:33,377 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:01:33,377 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:01:33,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:01:33 BoogieIcfgContainer [2019-12-28 05:01:33,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:01:33,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:01:33,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:01:33,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:01:33,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:01:32" (1/3) ... [2019-12-28 05:01:33,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc2015f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:01:33, skipping insertion in model container [2019-12-28 05:01:33,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:32" (2/3) ... [2019-12-28 05:01:33,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc2015f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:01:33, skipping insertion in model container [2019-12-28 05:01:33,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:01:33" (3/3) ... [2019-12-28 05:01:33,387 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2019-12-28 05:01:33,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:01:33,396 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:01:33,402 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:01:33,403 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:01:33,433 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,433 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,433 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,434 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,434 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,435 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,435 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,435 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,435 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,436 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,436 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,436 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,437 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,437 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,437 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,437 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,438 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,438 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,442 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,443 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,443 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,443 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,453 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,454 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,455 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,455 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,457 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,458 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,458 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,458 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:33,474 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:01:33,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:01:33,493 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:01:33,493 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:01:33,493 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:01:33,493 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:01:33,493 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:01:33,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:01:33,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:01:33,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 05:01:33,590 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 05:01:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 05:01:33,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:01:33,609 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:33,610 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] [2019-12-28 05:01:33,611 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:33,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:33,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-28 05:01:33,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:33,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524068507] [2019-12-28 05:01:33,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:34,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:01:34,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524068507] [2019-12-28 05:01:34,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:34,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:01:34,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1174897879] [2019-12-28 05:01:34,088 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:34,096 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:34,119 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:01:34,120 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:34,124 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:34,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:01:34,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:34,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:01:34,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:01:34,141 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 05:01:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:34,259 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 05:01:34,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:01:34,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 05:01:34,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:34,284 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 05:01:34,284 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 05:01:34,286 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 [2019-12-28 05:01:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 05:01:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 05:01:34,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 05:01:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 05:01:34,392 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 05:01:34,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:34,393 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 05:01:34,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:01:34,394 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 05:01:34,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:01:34,401 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:34,401 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] [2019-12-28 05:01:34,402 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:34,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-28 05:01:34,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:34,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449512053] [2019-12-28 05:01:34,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:01:34,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449512053] [2019-12-28 05:01:34,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:34,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:01:34,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [128795030] [2019-12-28 05:01:34,588 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:34,594 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:34,599 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 05:01:34,599 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:34,601 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:34,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:01:34,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:34,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:01:34,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:01:34,612 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 05:01:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:34,703 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 05:01:34,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:01:34,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 05:01:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:34,714 INFO L225 Difference]: With dead ends: 601 [2019-12-28 05:01:34,715 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 05:01:34,716 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 [2019-12-28 05:01:34,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 05:01:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 05:01:34,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 05:01:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 05:01:34,774 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 05:01:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:34,775 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 05:01:34,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:01:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 05:01:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:01:34,778 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:34,778 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] [2019-12-28 05:01:34,779 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:34,779 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-28 05:01:34,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:34,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789356420] [2019-12-28 05:01:34,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:01:34,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789356420] [2019-12-28 05:01:34,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:34,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:01:34,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1386329732] [2019-12-28 05:01:34,951 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:34,955 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:34,961 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 05:01:34,962 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:34,962 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:34,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:01:34,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:34,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:01:34,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:01:34,964 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 05:01:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:35,071 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 05:01:35,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:01:35,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 05:01:35,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:35,075 INFO L225 Difference]: With dead ends: 403 [2019-12-28 05:01:35,076 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 05:01:35,076 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 [2019-12-28 05:01:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 05:01:35,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 05:01:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 05:01:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 05:01:35,089 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 05:01:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:35,090 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 05:01:35,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:01:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 05:01:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:01:35,095 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:35,096 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:01:35,096 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:35,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:35,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-28 05:01:35,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:35,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537172995] [2019-12-28 05:01:35,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:01:35,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537172995] [2019-12-28 05:01:35,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:35,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:01:35,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [340271820] [2019-12-28 05:01:35,325 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:35,331 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:35,337 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 05:01:35,338 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:35,338 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:35,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:01:35,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:35,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:01:35,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:01:35,339 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-28 05:01:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:35,718 INFO L93 Difference]: Finished difference Result 889 states and 2418 transitions. [2019-12-28 05:01:35,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-28 05:01:35,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:01:35,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:35,722 INFO L225 Difference]: With dead ends: 889 [2019-12-28 05:01:35,723 INFO L226 Difference]: Without dead ends: 280 [2019-12-28 05:01:35,723 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2019-12-28 05:01:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-28 05:01:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-28 05:01:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-28 05:01:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-28 05:01:35,734 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-28 05:01:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:35,735 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-28 05:01:35,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:01:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-28 05:01:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:01:35,736 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:35,736 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:01:35,736 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:35,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 2 times [2019-12-28 05:01:35,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:35,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242126876] [2019-12-28 05:01:35,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:01:35,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242126876] [2019-12-28 05:01:35,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:35,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:01:35,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [112058211] [2019-12-28 05:01:35,914 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:35,917 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:35,922 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 34 transitions. [2019-12-28 05:01:35,927 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:35,928 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:35,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:01:35,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:35,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:01:35,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:01:35,933 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-12-28 05:01:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:36,038 INFO L93 Difference]: Finished difference Result 226 states and 564 transitions. [2019-12-28 05:01:36,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:01:36,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:01:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:36,039 INFO L225 Difference]: With dead ends: 226 [2019-12-28 05:01:36,039 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:01:36,041 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:01:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:01:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:01:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:01:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:01:36,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 05:01:36,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:36,043 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:01:36,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:01:36,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:01:36,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:01:36,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:01:36 BasicIcfg [2019-12-28 05:01:36,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:01:36,057 INFO L168 Benchmark]: Toolchain (without parser) took 3837.18 ms. Allocated memory was 138.9 MB in the beginning and 248.0 MB in the end (delta: 109.1 MB). Free memory was 102.4 MB in the beginning and 148.7 MB in the end (delta: -46.3 MB). Peak memory consumption was 62.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,058 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.05 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 160.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.71 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,067 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,068 INFO L168 Benchmark]: RCFGBuilder took 450.71 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 137.1 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,070 INFO L168 Benchmark]: TraceAbstraction took 2671.86 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 136.4 MB in the beginning and 148.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:36,083 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 626.05 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 160.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.71 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 450.71 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 137.1 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2671.86 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 136.4 MB in the beginning and 148.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 31.8 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 353 SDslu, 711 SDs, 0 SdLazy, 108 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15831 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...