/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:50:25,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:50:25,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:50:25,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:50:25,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:50:25,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:50:25,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:50:25,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:50:25,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:50:25,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:50:25,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:50:25,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:50:25,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:50:25,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:50:25,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:50:25,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:50:25,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:50:25,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:50:25,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:50:25,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:50:25,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:50:25,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:50:25,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:50:25,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:50:25,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:50:25,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:50:25,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:50:25,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:50:25,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:50:25,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:50:25,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:50:25,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:50:25,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:50:25,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:50:25,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:50:25,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:50:25,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:50:25,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:50:25,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:50:25,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:50:25,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:50:25,951 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-VariableLbe.epf [2019-12-27 07:50:25,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:50:25,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:50:25,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:50:25,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:50:25,990 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:50:25,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:50:25,990 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:50:25,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:50:25,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:50:25,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:50:25,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:50:25,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:50:25,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:50:25,992 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:50:25,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:50:25,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:50:25,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:50:25,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:50:25,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:50:25,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:50:25,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:50:25,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:50:25,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:50:25,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:50:25,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:50:25,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:50:25,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:50:25,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:50:25,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:50:25,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:50:26,294 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:50:26,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:50:26,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:50:26,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:50:26,317 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:50:26,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2019-12-27 07:50:26,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f238e1afa/7a84ae23498846eb9e0b754d1e64cd66/FLAG46e2bad1e [2019-12-27 07:50:26,988 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:50:26,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2019-12-27 07:50:27,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f238e1afa/7a84ae23498846eb9e0b754d1e64cd66/FLAG46e2bad1e [2019-12-27 07:50:27,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f238e1afa/7a84ae23498846eb9e0b754d1e64cd66 [2019-12-27 07:50:27,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:50:27,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:50:27,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:50:27,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:50:27,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:50:27,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690ee292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27, skipping insertion in model container [2019-12-27 07:50:27,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:50:27,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:50:27,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:50:27,761 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:50:27,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:50:27,896 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:50:27,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27 WrapperNode [2019-12-27 07:50:27,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:50:27,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:50:27,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:50:27,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:50:27,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:50:27,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:50:27,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:50:27,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:50:27,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (1/1) ... [2019-12-27 07:50:27,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:50:27,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:50:27,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:50:27,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:50:27,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (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 07:50:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:50:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:50:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:50:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:50:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:50:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:50:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:50:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:50:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:50:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:50:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:50:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:50:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:50:28,083 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 07:50:28,481 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:50:28,481 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:50:28,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:50:28 BoogieIcfgContainer [2019-12-27 07:50:28,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:50:28,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:50:28,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:50:28,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:50:28,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:50:27" (1/3) ... [2019-12-27 07:50:28,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287aedf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:50:28, skipping insertion in model container [2019-12-27 07:50:28,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:50:27" (2/3) ... [2019-12-27 07:50:28,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287aedf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:50:28, skipping insertion in model container [2019-12-27 07:50:28,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:50:28" (3/3) ... [2019-12-27 07:50:28,491 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2019-12-27 07:50:28,502 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:50:28,502 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:50:28,510 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:50:28,511 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:50:28,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,542 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,542 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,543 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,543 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,544 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,544 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,544 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,544 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,545 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,545 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,546 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,549 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,550 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,550 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,550 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,555 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,556 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,556 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,556 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,559 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,559 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,560 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,560 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:50:28,574 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:50:28,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:50:28,591 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:50:28,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:50:28,591 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:50:28,592 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:50:28,592 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:50:28,592 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:50:28,592 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:50:28,604 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 07:50:28,606 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:50:28,652 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:50:28,652 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:50:28,658 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:50:28,661 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:50:28,681 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:50:28,681 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:50:28,682 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:50:28,686 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:50:28,687 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:50:29,971 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 07:50:30,097 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-27 07:50:30,099 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:50:30,103 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:50:30,117 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:50:30,120 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:50:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:50:30,142 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:50:30,143 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:50:30,144 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:50:30,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:50:30,153 INFO L82 PathProgramCache]: Analyzing trace with hash 492740166, now seen corresponding path program 1 times [2019-12-27 07:50:30,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:50:30,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963605013] [2019-12-27 07:50:30,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:50:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:50:30,491 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 07:50:30,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963605013] [2019-12-27 07:50:30,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:50:30,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:50:30,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151836585] [2019-12-27 07:50:30,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:50:30,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:50:30,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:50:30,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:50:30,522 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:50:30,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:50:30,555 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 07:50:30,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:50:30,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:50:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:50:30,570 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:50:30,570 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:50:30,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:50:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:50:30,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:50:30,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:50:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:50:30,615 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:50:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:50:30,616 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:50:30,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:50:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:50:30,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:50:30,620 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:50:30,620 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:50:30,620 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:50:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:50:30,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1904869198, now seen corresponding path program 1 times [2019-12-27 07:50:30,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:50:30,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438254308] [2019-12-27 07:50:30,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:50:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:50:30,717 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 07:50:30,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438254308] [2019-12-27 07:50:30,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:50:30,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:50:30,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794200474] [2019-12-27 07:50:30,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:50:30,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:50:30,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:50:30,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:50:30,722 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:50:30,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:50:30,754 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:50:30,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:50:30,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:50:30,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:50:30,756 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:50:30,756 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:50:30,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:50:30,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:50:30,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:50:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:50:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 07:50:30,766 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 07:50:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:50:30,767 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 07:50:30,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:50:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 07:50:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:50:30,769 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:50:30,769 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:50:30,770 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:50:30,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:50:30,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1444336371, now seen corresponding path program 1 times [2019-12-27 07:50:30,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:50:30,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133935976] [2019-12-27 07:50:30,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:50:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:50:30,826 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 07:50:30,827 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133935976] [2019-12-27 07:50:30,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:50:30,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:50:30,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887290395] [2019-12-27 07:50:30,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:50:30,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:50:30,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:50:30,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:50:30,829 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 07:50:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:50:30,842 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 07:50:30,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:50:30,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:50:30,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:50:30,843 INFO L225 Difference]: With dead ends: 29 [2019-12-27 07:50:30,843 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:50:30,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:50:30,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:50:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:50:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:50:30,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:50:30,849 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 07:50:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:50:30,850 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:50:30,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:50:30,850 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:50:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:50:30,851 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:50:30,851 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:50:30,851 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:50:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:50:30,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1824813225, now seen corresponding path program 1 times [2019-12-27 07:50:30,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:50:30,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47691873] [2019-12-27 07:50:30,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:50:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:50:30,951 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 07:50:30,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47691873] [2019-12-27 07:50:30,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:50:30,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:50:30,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675223951] [2019-12-27 07:50:30,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:50:30,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:50:30,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:50:30,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:50:30,957 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:50:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:50:30,975 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:50:30,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:50:30,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:50:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:50:30,976 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:50:30,976 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:50:30,978 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:50:30,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:50:30,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:50:30,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:50:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:50:30,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:50:30,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:50:30,979 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:50:30,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:50:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:50:30,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:50:30,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:50:30 BasicIcfg [2019-12-27 07:50:30,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:50:30,986 INFO L168 Benchmark]: Toolchain (without parser) took 3756.12 ms. Allocated memory was 140.0 MB in the beginning and 244.3 MB in the end (delta: 104.3 MB). Free memory was 103.7 MB in the beginning and 166.8 MB in the end (delta: -63.0 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:50:30,988 INFO L168 Benchmark]: CDTParser took 1.40 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 07:50:30,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.02 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.3 MB in the beginning and 162.4 MB in the end (delta: -59.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:50:30,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.00 ms. Allocated memory is still 205.0 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:50:30,998 INFO L168 Benchmark]: Boogie Preprocessor took 30.42 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:50:30,999 INFO L168 Benchmark]: RCFGBuilder took 491.91 ms. Allocated memory is still 205.0 MB. Free memory was 158.5 MB in the beginning and 138.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-27 07:50:31,000 INFO L168 Benchmark]: TraceAbstraction took 2500.36 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 138.0 MB in the beginning and 166.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:50:31,012 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.02 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.3 MB in the beginning and 162.4 MB in the end (delta: -59.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.00 ms. Allocated memory is still 205.0 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.42 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.91 ms. Allocated memory is still 205.0 MB. Free memory was 158.5 MB in the beginning and 138.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2500.36 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 138.0 MB in the beginning and 166.8 MB in the end (delta: -28.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 244 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 17 SDslu, 32 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...