/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:34:30,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:34:30,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:34:30,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:34:30,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:34:30,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:34:30,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:34:30,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:34:30,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:34:30,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:34:30,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:34:30,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:34:30,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:34:30,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:34:30,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:34:30,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:34:30,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:34:30,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:34:30,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:34:30,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:34:30,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:34:30,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:34:30,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:34:30,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:34:30,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:34:30,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:34:30,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:34:30,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:34:30,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:34:30,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:34:30,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:34:30,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:34:30,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:34:30,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:34:30,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:34:30,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:34:30,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 05:34:30,104 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:34:30,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:34:30,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:34:30,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:34:30,105 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:34:30,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:34:30,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:34:30,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:34:30,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:34:30,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:34:30,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:34:30,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:34:30,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:34:30,107 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:34:30,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:34:30,108 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:34:30,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:34:30,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:34:30,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:34:30,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:34:30,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:34:30,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:34:30,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:34:30,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:34:30,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:34:30,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:34:30,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:34:30,110 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:34:30,110 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:34:30,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:34:30,110 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:34:30,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:34:30,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:34:30,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:34:30,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:34:30,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:34:30,419 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:34:30,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2019-12-28 05:34:30,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4f2d72b/19464af8580f41fbbb47b1659d3d3d0c/FLAG76dfdbc75 [2019-12-28 05:34:31,054 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:34:31,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2019-12-28 05:34:31,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4f2d72b/19464af8580f41fbbb47b1659d3d3d0c/FLAG76dfdbc75 [2019-12-28 05:34:31,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4f2d72b/19464af8580f41fbbb47b1659d3d3d0c [2019-12-28 05:34:31,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:34:31,296 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:34:31,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:34:31,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:34:31,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:34:31,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:34:31" (1/1) ... [2019-12-28 05:34:31,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74983f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:31, skipping insertion in model container [2019-12-28 05:34:31,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:34:31" (1/1) ... [2019-12-28 05:34:31,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:34:31,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:34:31,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:34:31,895 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:34:31,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:34:32,040 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:34:32,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32 WrapperNode [2019-12-28 05:34:32,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:34:32,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:34:32,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:34:32,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:34:32,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:34:32,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:34:32,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:34:32,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:34:32,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... [2019-12-28 05:34:32,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:34:32,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:34:32,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:34:32,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:34:32,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:34:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:34:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:34:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:34:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:34:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:34:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:34:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:34:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:34:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:34:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:34:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-28 05:34:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-28 05:34:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:34:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:34:32,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:34:32,185 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:34:32,587 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:34:32,588 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:34:32,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:34:32 BoogieIcfgContainer [2019-12-28 05:34:32,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:34:32,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:34:32,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:34:32,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:34:32,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:34:31" (1/3) ... [2019-12-28 05:34:32,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256344c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:34:32, skipping insertion in model container [2019-12-28 05:34:32,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:32" (2/3) ... [2019-12-28 05:34:32,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256344c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:34:32, skipping insertion in model container [2019-12-28 05:34:32,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:34:32" (3/3) ... [2019-12-28 05:34:32,602 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2019-12-28 05:34:32,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:34:32,613 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:34:32,624 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:34:32,625 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:34:32,657 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,658 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,658 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,659 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,659 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,660 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,660 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,661 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,661 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,661 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,662 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,662 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,663 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,663 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,664 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,664 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,664 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,664 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,665 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,665 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,669 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,669 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,670 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,670 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,675 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,676 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,676 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,676 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,680 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,681 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,681 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,681 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,684 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,684 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,684 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,684 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:32,698 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:34:32,715 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:34:32,715 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:34:32,715 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:34:32,715 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:34:32,715 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:34:32,716 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:34:32,716 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:34:32,716 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:34:32,727 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 67 transitions [2019-12-28 05:34:33,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5475 states. [2019-12-28 05:34:33,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states. [2019-12-28 05:34:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 05:34:33,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:33,142 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, 1, 1, 1, 1] [2019-12-28 05:34:33,143 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:33,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:33,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2004379789, now seen corresponding path program 1 times [2019-12-28 05:34:33,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:33,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130025593] [2019-12-28 05:34:33,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:33,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130025593] [2019-12-28 05:34:33,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:33,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:34:33,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1324672733] [2019-12-28 05:34:33,646 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:33,656 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:33,683 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 38 transitions. [2019-12-28 05:34:33,684 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:33,687 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:34:33,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:34:33,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:33,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:34:33,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:34:33,701 INFO L87 Difference]: Start difference. First operand 5475 states. Second operand 4 states. [2019-12-28 05:34:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:33,857 INFO L93 Difference]: Finished difference Result 5712 states and 21937 transitions. [2019-12-28 05:34:33,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:34:33,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-12-28 05:34:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:33,901 INFO L225 Difference]: With dead ends: 5712 [2019-12-28 05:34:33,902 INFO L226 Difference]: Without dead ends: 2396 [2019-12-28 05:34:33,903 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:34:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2019-12-28 05:34:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2019-12-28 05:34:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2019-12-28 05:34:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 8940 transitions. [2019-12-28 05:34:34,102 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 8940 transitions. Word has length 38 [2019-12-28 05:34:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:34,104 INFO L462 AbstractCegarLoop]: Abstraction has 2396 states and 8940 transitions. [2019-12-28 05:34:34,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:34:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 8940 transitions. [2019-12-28 05:34:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 05:34:34,110 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:34,110 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, 1, 1, 1, 1, 1] [2019-12-28 05:34:34,111 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:34,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1300611009, now seen corresponding path program 1 times [2019-12-28 05:34:34,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:34,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696254506] [2019-12-28 05:34:34,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:34,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696254506] [2019-12-28 05:34:34,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:34,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:34:34,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1468810855] [2019-12-28 05:34:34,297 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:34,302 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:34,313 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 52 states and 63 transitions. [2019-12-28 05:34:34,313 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:34,370 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2019-12-28 05:34:34,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:34:34,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:34,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:34:34,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:34:34,373 INFO L87 Difference]: Start difference. First operand 2396 states and 8940 transitions. Second operand 6 states. [2019-12-28 05:34:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:34,501 INFO L93 Difference]: Finished difference Result 2567 states and 9324 transitions. [2019-12-28 05:34:34,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:34:34,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-12-28 05:34:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:34,523 INFO L225 Difference]: With dead ends: 2567 [2019-12-28 05:34:34,523 INFO L226 Difference]: Without dead ends: 2312 [2019-12-28 05:34:34,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:34,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2019-12-28 05:34:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2019-12-28 05:34:34,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2019-12-28 05:34:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 8548 transitions. [2019-12-28 05:34:34,625 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 8548 transitions. Word has length 39 [2019-12-28 05:34:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:34,626 INFO L462 AbstractCegarLoop]: Abstraction has 2312 states and 8548 transitions. [2019-12-28 05:34:34,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:34:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 8548 transitions. [2019-12-28 05:34:34,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:34:34,632 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:34,632 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, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:34,632 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:34,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:34,633 INFO L82 PathProgramCache]: Analyzing trace with hash -448422512, now seen corresponding path program 1 times [2019-12-28 05:34:34,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:34,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574660237] [2019-12-28 05:34:34,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:34,753 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574660237] [2019-12-28 05:34:34,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:34,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:34:34,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [448735024] [2019-12-28 05:34:34,753 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:34,759 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:34,770 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 61 states and 80 transitions. [2019-12-28 05:34:34,771 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:34,801 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2019-12-28 05:34:34,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:34:34,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:34,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:34:34,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:34:34,803 INFO L87 Difference]: Start difference. First operand 2312 states and 8548 transitions. Second operand 7 states. [2019-12-28 05:34:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:34,985 INFO L93 Difference]: Finished difference Result 2177 states and 7684 transitions. [2019-12-28 05:34:34,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:34,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:34:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:35,001 INFO L225 Difference]: With dead ends: 2177 [2019-12-28 05:34:35,001 INFO L226 Difference]: Without dead ends: 1934 [2019-12-28 05:34:35,002 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:34:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2019-12-28 05:34:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2019-12-28 05:34:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-12-28 05:34:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 6910 transitions. [2019-12-28 05:34:35,073 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 6910 transitions. Word has length 40 [2019-12-28 05:34:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:35,074 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 6910 transitions. [2019-12-28 05:34:35,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:34:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 6910 transitions. [2019-12-28 05:34:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-28 05:34:35,082 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:35,082 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:35,082 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:35,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:35,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1962214962, now seen corresponding path program 1 times [2019-12-28 05:34:35,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:35,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393339469] [2019-12-28 05:34:35,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:35,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393339469] [2019-12-28 05:34:35,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:35,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:35,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1625652017] [2019-12-28 05:34:35,271 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:35,277 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:35,287 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 66 states and 89 transitions. [2019-12-28 05:34:35,287 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:35,312 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2019-12-28 05:34:35,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:35,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:35,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:35,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:35,314 INFO L87 Difference]: Start difference. First operand 1934 states and 6910 transitions. Second operand 8 states. [2019-12-28 05:34:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:35,466 INFO L93 Difference]: Finished difference Result 1367 states and 4534 transitions. [2019-12-28 05:34:35,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:34:35,467 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-28 05:34:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:35,476 INFO L225 Difference]: With dead ends: 1367 [2019-12-28 05:34:35,476 INFO L226 Difference]: Without dead ends: 1178 [2019-12-28 05:34:35,477 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:34:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-12-28 05:34:35,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2019-12-28 05:34:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2019-12-28 05:34:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 3886 transitions. [2019-12-28 05:34:35,515 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 3886 transitions. Word has length 41 [2019-12-28 05:34:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:35,517 INFO L462 AbstractCegarLoop]: Abstraction has 1178 states and 3886 transitions. [2019-12-28 05:34:35,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 3886 transitions. [2019-12-28 05:34:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:35,520 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:35,521 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:35,521 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:35,521 INFO L82 PathProgramCache]: Analyzing trace with hash 235705111, now seen corresponding path program 1 times [2019-12-28 05:34:35,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:35,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604520670] [2019-12-28 05:34:35,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:35,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604520670] [2019-12-28 05:34:35,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:35,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:35,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1659637354] [2019-12-28 05:34:35,653 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:35,705 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:35,716 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 67 states and 90 transitions. [2019-12-28 05:34:35,717 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:35,742 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2019-12-28 05:34:35,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:35,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:35,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:35,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:35,743 INFO L87 Difference]: Start difference. First operand 1178 states and 3886 transitions. Second operand 8 states. [2019-12-28 05:34:35,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:35,858 INFO L93 Difference]: Finished difference Result 1727 states and 5779 transitions. [2019-12-28 05:34:35,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:35,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-28 05:34:35,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:35,865 INFO L225 Difference]: With dead ends: 1727 [2019-12-28 05:34:35,866 INFO L226 Difference]: Without dead ends: 878 [2019-12-28 05:34:35,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:34:35,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-12-28 05:34:35,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2019-12-28 05:34:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2019-12-28 05:34:35,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2890 transitions. [2019-12-28 05:34:35,903 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2890 transitions. Word has length 42 [2019-12-28 05:34:35,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:35,903 INFO L462 AbstractCegarLoop]: Abstraction has 878 states and 2890 transitions. [2019-12-28 05:34:35,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2890 transitions. [2019-12-28 05:34:35,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:35,905 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:35,906 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:35,906 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:35,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:35,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1056006217, now seen corresponding path program 2 times [2019-12-28 05:34:35,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:35,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221940698] [2019-12-28 05:34:35,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:36,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221940698] [2019-12-28 05:34:36,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:36,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:34:36,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [349766990] [2019-12-28 05:34:36,082 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:36,087 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:36,096 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 55 states and 66 transitions. [2019-12-28 05:34:36,097 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:36,097 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-28 05:34:36,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:36,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:36,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:36,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:36,098 INFO L87 Difference]: Start difference. First operand 878 states and 2890 transitions. Second operand 8 states. [2019-12-28 05:34:36,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:36,194 INFO L93 Difference]: Finished difference Result 1391 states and 4672 transitions. [2019-12-28 05:34:36,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:34:36,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-28 05:34:36,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:36,201 INFO L225 Difference]: With dead ends: 1391 [2019-12-28 05:34:36,201 INFO L226 Difference]: Without dead ends: 770 [2019-12-28 05:34:36,201 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:34:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-12-28 05:34:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-12-28 05:34:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-12-28 05:34:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2578 transitions. [2019-12-28 05:34:36,223 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2578 transitions. Word has length 42 [2019-12-28 05:34:36,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:36,223 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 2578 transitions. [2019-12-28 05:34:36,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:36,224 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2578 transitions. [2019-12-28 05:34:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:36,225 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:36,226 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:36,226 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:36,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:36,226 INFO L82 PathProgramCache]: Analyzing trace with hash -112551247, now seen corresponding path program 3 times [2019-12-28 05:34:36,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:36,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191281992] [2019-12-28 05:34:36,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:36,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191281992] [2019-12-28 05:34:36,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:36,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:34:36,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [581252126] [2019-12-28 05:34:36,372 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:36,377 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:36,386 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 50 transitions. [2019-12-28 05:34:36,386 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:36,386 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:34:36,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:36,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:36,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:36,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:36,388 INFO L87 Difference]: Start difference. First operand 770 states and 2578 transitions. Second operand 8 states. [2019-12-28 05:34:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:36,500 INFO L93 Difference]: Finished difference Result 1256 states and 4279 transitions. [2019-12-28 05:34:36,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:34:36,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-28 05:34:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:36,507 INFO L225 Difference]: With dead ends: 1256 [2019-12-28 05:34:36,508 INFO L226 Difference]: Without dead ends: 719 [2019-12-28 05:34:36,508 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:34:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-12-28 05:34:36,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2019-12-28 05:34:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2019-12-28 05:34:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2434 transitions. [2019-12-28 05:34:36,534 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2434 transitions. Word has length 42 [2019-12-28 05:34:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:36,535 INFO L462 AbstractCegarLoop]: Abstraction has 719 states and 2434 transitions. [2019-12-28 05:34:36,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2434 transitions. [2019-12-28 05:34:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:36,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:36,537 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:36,537 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:36,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:36,538 INFO L82 PathProgramCache]: Analyzing trace with hash -267044461, now seen corresponding path program 4 times [2019-12-28 05:34:36,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:36,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010541750] [2019-12-28 05:34:36,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:34:36,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010541750] [2019-12-28 05:34:36,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:36,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:36,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1001136810] [2019-12-28 05:34:36,748 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:36,753 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:36,760 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 43 states and 42 transitions. [2019-12-28 05:34:36,761 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:36,761 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:34:36,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:34:36,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:36,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:34:36,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:34:36,762 INFO L87 Difference]: Start difference. First operand 719 states and 2434 transitions. Second operand 7 states. [2019-12-28 05:34:36,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:36,846 INFO L93 Difference]: Finished difference Result 557 states and 1840 transitions. [2019-12-28 05:34:36,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:36,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-12-28 05:34:36,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:36,847 INFO L225 Difference]: With dead ends: 557 [2019-12-28 05:34:36,847 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:34:36,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:34:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:34:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:34:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:34:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:34:36,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-12-28 05:34:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:36,848 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:34:36,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:34:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:34:36,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:34:36,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:34:36 BasicIcfg [2019-12-28 05:34:36,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:34:36,857 INFO L168 Benchmark]: Toolchain (without parser) took 5560.18 ms. Allocated memory was 145.2 MB in the beginning and 306.2 MB in the end (delta: 161.0 MB). Free memory was 100.8 MB in the beginning and 218.8 MB in the end (delta: -118.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,857 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.96 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.6 MB in the beginning and 159.9 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,860 INFO L168 Benchmark]: Boogie Preprocessor took 27.62 ms. Allocated memory is still 203.9 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,860 INFO L168 Benchmark]: RCFGBuilder took 468.78 ms. Allocated memory is still 203.9 MB. Free memory was 155.9 MB in the beginning and 133.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,861 INFO L168 Benchmark]: TraceAbstraction took 4262.50 ms. Allocated memory was 203.9 MB in the beginning and 306.2 MB in the end (delta: 102.2 MB). Free memory was 132.8 MB in the beginning and 218.8 MB in the end (delta: -86.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:36,865 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.96 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.6 MB in the beginning and 159.9 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.49 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.62 ms. Allocated memory is still 203.9 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 468.78 ms. Allocated memory is still 203.9 MB. Free memory was 155.9 MB in the beginning and 133.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4262.50 ms. Allocated memory was 203.9 MB in the beginning and 306.2 MB in the end (delta: 102.2 MB). Free memory was 132.8 MB in the beginning and 218.8 MB in the end (delta: -86.0 MB). Peak memory consumption was 16.2 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 5 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 806 SDslu, 1359 SDs, 0 SdLazy, 203 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 39038 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...