/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:18:34,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:18:34,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:18:34,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:18:34,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:18:34,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:18:34,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:18:34,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:18:34,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:18:34,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:18:34,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:18:34,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:18:34,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:18:34,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:18:34,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:18:34,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:18:34,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:18:34,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:18:34,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:18:34,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:18:34,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:18:34,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:18:34,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:18:34,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:18:34,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:18:34,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:18:34,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:18:34,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:18:34,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:18:34,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:18:34,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:18:34,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:18:34,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:18:34,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:18:34,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:18:34,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:18:34,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:18:34,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:18:34,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:18:34,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:18:34,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:18:34,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:18:34,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:18:34,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:18:34,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:18:34,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:18:34,844 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:18:34,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:18:34,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:18:34,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:18:34,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:18:34,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:18:34,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:18:34,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:18:34,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:18:34,845 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:18:34,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:18:34,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:18:34,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:18:34,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:18:34,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:18:34,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:18:34,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:18:34,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:18:34,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:18:34,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:18:34,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:18:34,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:18:34,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:18:34,853 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:18:34,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:18:34,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:18:35,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:18:35,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:18:35,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:18:35,190 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:18:35,190 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:18:35,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2019-12-19 05:18:35,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b181aaa29/99847fa1e4ef4286b1b60b781a685882/FLAGa6cbe32fa [2019-12-19 05:18:35,835 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:18:35,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2019-12-19 05:18:35,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b181aaa29/99847fa1e4ef4286b1b60b781a685882/FLAGa6cbe32fa [2019-12-19 05:18:36,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b181aaa29/99847fa1e4ef4286b1b60b781a685882 [2019-12-19 05:18:36,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:18:36,168 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:18:36,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:18:36,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:18:36,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:18:36,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fae05fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36, skipping insertion in model container [2019-12-19 05:18:36,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:18:36,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:18:36,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:18:36,744 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:18:36,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:18:36,872 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:18:36,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36 WrapperNode [2019-12-19 05:18:36,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:18:36,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:18:36,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:18:36,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:18:36,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:18:36,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:18:36,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:18:36,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:18:36,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... [2019-12-19 05:18:36,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:18:36,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:18:36,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:18:36,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:18:36,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:18:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:18:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:18:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:18:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:18:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:18:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:18:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:18:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:18:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:18:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:18:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:18:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:18:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:18:37,030 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:18:37,443 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:18:37,443 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:18:37,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:18:37 BoogieIcfgContainer [2019-12-19 05:18:37,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:18:37,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:18:37,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:18:37,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:18:37,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:18:36" (1/3) ... [2019-12-19 05:18:37,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7c0981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:18:37, skipping insertion in model container [2019-12-19 05:18:37,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:36" (2/3) ... [2019-12-19 05:18:37,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7c0981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:18:37, skipping insertion in model container [2019-12-19 05:18:37,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:18:37" (3/3) ... [2019-12-19 05:18:37,453 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2019-12-19 05:18:37,463 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:18:37,464 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:18:37,471 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:18:37,472 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:18:37,501 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,502 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,502 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,502 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,503 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,503 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,504 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,504 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,504 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,506 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,507 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,507 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,507 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,508 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,508 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,508 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,508 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,509 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,513 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,513 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,514 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,514 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,521 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,521 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,521 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,522 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,526 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:37,540 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:18:37,556 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:18:37,556 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:18:37,556 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:18:37,556 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:18:37,557 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:18:37,557 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:18:37,557 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:18:37,557 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:18:37,568 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:18:37,652 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:18:37,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:18:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:18:37,672 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:37,674 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] [2019-12-19 05:18:37,674 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:37,681 INFO L82 PathProgramCache]: Analyzing trace with hash -193367577, now seen corresponding path program 1 times [2019-12-19 05:18:37,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:37,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347847520] [2019-12-19 05:18:37,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:18:38,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347847520] [2019-12-19 05:18:38,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:38,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:18:38,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250214469] [2019-12-19 05:18:38,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:18:38,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:38,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:18:38,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:18:38,183 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:18:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:38,299 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:18:38,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:18:38,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:18:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:38,362 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:18:38,362 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:18:38,364 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:18:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:18:38,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:18:38,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:18:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:18:38,466 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:18:38,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:38,467 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:18:38,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:18:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:18:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:18:38,476 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:38,477 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:18:38,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:38,478 INFO L82 PathProgramCache]: Analyzing trace with hash 697710444, now seen corresponding path program 1 times [2019-12-19 05:18:38,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:38,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418222252] [2019-12-19 05:18:38,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:18:38,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418222252] [2019-12-19 05:18:38,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:38,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:18:38,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993186873] [2019-12-19 05:18:38,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:18:38,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:38,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:18:38,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:18:38,709 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:18:38,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:38,804 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:18:38,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:18:38,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:18:38,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:38,820 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:18:38,820 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:18:38,821 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:18:38,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:18:38,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:18:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:18:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:18:38,861 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:18:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:38,862 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:18:38,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:18:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:18:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:18:38,864 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:38,864 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:18:38,864 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:38,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:38,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2130890134, now seen corresponding path program 1 times [2019-12-19 05:18:38,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:38,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545592915] [2019-12-19 05:18:38,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:38,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:18:38,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545592915] [2019-12-19 05:18:38,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:38,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:18:38,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759967775] [2019-12-19 05:18:38,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:18:38,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:38,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:18:38,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:18:38,980 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:18:39,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:39,067 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:18:39,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:18:39,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:18:39,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:39,071 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:18:39,071 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:18:39,072 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:18:39,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:18:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:18:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:18:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:18:39,088 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:18:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:39,088 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:18:39,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:18:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:18:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:18:39,090 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:39,090 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:18:39,090 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1468969640, now seen corresponding path program 1 times [2019-12-19 05:18:39,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:39,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253464959] [2019-12-19 05:18:39,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:18:39,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253464959] [2019-12-19 05:18:39,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:39,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:18:39,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298374391] [2019-12-19 05:18:39,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:18:39,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:39,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:18:39,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:18:39,273 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:18:39,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:39,435 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-12-19 05:18:39,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:18:39,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:18:39,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:39,439 INFO L225 Difference]: With dead ends: 520 [2019-12-19 05:18:39,439 INFO L226 Difference]: Without dead ends: 277 [2019-12-19 05:18:39,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:18:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-12-19 05:18:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-12-19 05:18:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-12-19 05:18:39,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 726 transitions. [2019-12-19 05:18:39,451 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 726 transitions. Word has length 34 [2019-12-19 05:18:39,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:39,452 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 726 transitions. [2019-12-19 05:18:39,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:18:39,452 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 726 transitions. [2019-12-19 05:18:39,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:18:39,453 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:39,453 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:18:39,454 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:39,454 INFO L82 PathProgramCache]: Analyzing trace with hash -900597390, now seen corresponding path program 2 times [2019-12-19 05:18:39,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:39,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677701883] [2019-12-19 05:18:39,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:18:39,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677701883] [2019-12-19 05:18:39,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:39,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:18:39,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019614890] [2019-12-19 05:18:39,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:18:39,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:39,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:18:39,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:18:39,621 INFO L87 Difference]: Start difference. First operand 277 states and 726 transitions. Second operand 7 states. [2019-12-19 05:18:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:39,816 INFO L93 Difference]: Finished difference Result 439 states and 1185 transitions. [2019-12-19 05:18:39,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:18:39,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:18:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:39,822 INFO L225 Difference]: With dead ends: 439 [2019-12-19 05:18:39,823 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 05:18:39,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:18:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 05:18:39,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 05:18:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 05:18:39,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 05:18:39,834 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 05:18:39,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:39,835 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 05:18:39,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:18:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 05:18:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:18:39,838 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:39,842 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:18:39,843 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:39,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:39,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1107408296, now seen corresponding path program 3 times [2019-12-19 05:18:39,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:39,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697437351] [2019-12-19 05:18:39,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:18:40,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697437351] [2019-12-19 05:18:40,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:40,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:18:40,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299866763] [2019-12-19 05:18:40,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:18:40,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:40,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:18:40,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:18:40,048 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 05:18:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:40,147 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 05:18:40,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:18:40,147 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:18:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:40,148 INFO L225 Difference]: With dead ends: 199 [2019-12-19 05:18:40,148 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:18:40,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:18:40,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:18:40,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:18:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:18:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:18:40,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:18:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:40,150 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:18:40,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:18:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:18:40,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:18:40,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:18:40 BasicIcfg [2019-12-19 05:18:40,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:18:40,164 INFO L168 Benchmark]: Toolchain (without parser) took 3993.73 ms. Allocated memory was 144.7 MB in the beginning and 252.2 MB in the end (delta: 107.5 MB). Free memory was 101.0 MB in the beginning and 167.1 MB in the end (delta: -66.1 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,165 INFO L168 Benchmark]: CDTParser took 3.09 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.81 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.5 MB in the beginning and 159.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.44 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 156.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,174 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,175 INFO L168 Benchmark]: RCFGBuilder took 487.84 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 134.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,176 INFO L168 Benchmark]: TraceAbstraction took 2713.79 ms. Allocated memory was 201.9 MB in the beginning and 252.2 MB in the end (delta: 50.3 MB). Free memory was 134.3 MB in the beginning and 167.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:40,191 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.09 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.81 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.5 MB in the beginning and 159.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.44 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 156.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 487.84 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 134.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2713.79 ms. Allocated memory was 201.9 MB in the beginning and 252.2 MB in the end (delta: 50.3 MB). Free memory was 134.3 MB in the beginning and 167.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 17.5 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: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 309 SDtfs, 366 SDslu, 847 SDs, 0 SdLazy, 119 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18900 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...