/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:27:16,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:27:16,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:27:16,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:27:16,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:27:16,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:27:16,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:27:16,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:27:16,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:27:16,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:27:16,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:27:16,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:27:16,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:27:16,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:27:16,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:27:16,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:27:16,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:27:16,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:27:16,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:27:16,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:27:16,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:27:16,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:27:16,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:27:16,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:27:16,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:27:16,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:27:16,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:27:16,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:27:16,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:27:16,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:27:16,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:27:16,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:27:16,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:27:16,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:27:16,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:27:16,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:27:16,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:27:16,126 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:27:16,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:27:16,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:27:16,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:27:16,129 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:27:16,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:27:16,129 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:27:16,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:27:16,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:27:16,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:27:16,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:27:16,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:27:16,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:27:16,132 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:27:16,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:27:16,132 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:27:16,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:27:16,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:27:16,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:27:16,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:27:16,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:27:16,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:27:16,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:27:16,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:27:16,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:27:16,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:27:16,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:27:16,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:27:16,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:27:16,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:27:16,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:27:16,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:27:16,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:27:16,431 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:27:16,432 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:27:16,434 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2019-12-18 14:27:16,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd17474b4/73f1821b2cd34f9cb37d8e37395a7624/FLAGc5b7d9c49 [2019-12-18 14:27:17,054 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:27:17,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2019-12-18 14:27:17,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd17474b4/73f1821b2cd34f9cb37d8e37395a7624/FLAGc5b7d9c49 [2019-12-18 14:27:17,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd17474b4/73f1821b2cd34f9cb37d8e37395a7624 [2019-12-18 14:27:17,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:27:17,363 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:27:17,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:27:17,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:27:17,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:27:17,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:27:17" (1/1) ... [2019-12-18 14:27:17,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4a6331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:17, skipping insertion in model container [2019-12-18 14:27:17,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:27:17" (1/1) ... [2019-12-18 14:27:17,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:27:17,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:27:17,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:27:17,944 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:27:18,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:27:18,105 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:27:18,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18 WrapperNode [2019-12-18 14:27:18,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:27:18,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:27:18,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:27:18,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:27:18,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:27:18,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:27:18,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:27:18,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:27:18,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (1/1) ... [2019-12-18 14:27:18,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:27:18,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:27:18,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:27:18,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:27:18,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (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 [2019-12-18 14:27:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:27:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:27:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:27:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:27:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:27:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:27:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:27:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:27:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:27:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:27:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:27:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:27:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:27:18,281 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:27:18,650 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:27:18,651 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:27:18,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:27:18 BoogieIcfgContainer [2019-12-18 14:27:18,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:27:18,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:27:18,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:27:18,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:27:18,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:27:17" (1/3) ... [2019-12-18 14:27:18,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a88c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:27:18, skipping insertion in model container [2019-12-18 14:27:18,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:27:18" (2/3) ... [2019-12-18 14:27:18,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a88c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:27:18, skipping insertion in model container [2019-12-18 14:27:18,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:27:18" (3/3) ... [2019-12-18 14:27:18,661 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2019-12-18 14:27:18,671 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:27:18,671 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:27:18,679 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:27:18,680 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:27:18,709 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,709 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,709 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,710 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,711 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,711 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,712 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,712 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,712 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,712 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,713 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,713 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,714 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,714 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,714 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,714 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,718 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,718 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,718 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,719 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,723 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,724 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,724 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,725 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,727 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,727 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,727 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,727 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:27:18,741 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:27:18,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:27:18,762 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:27:18,762 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:27:18,762 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:27:18,762 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:27:18,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:27:18,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:27:18,763 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:27:18,777 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:27:18,779 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:27:18,821 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:27:18,821 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:27:18,829 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:27:18,831 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:27:18,848 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:27:18,849 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:27:18,851 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:27:18,853 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:27:18,854 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:27:20,076 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-12-18 14:27:20,479 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-18 14:27:20,480 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 14:27:20,484 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 14:27:20,495 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 14:27:20,497 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 14:27:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:27:20,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:27:20,505 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:27:20,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:27:20,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:27:20,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-18 14:27:20,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:27:20,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870332544] [2019-12-18 14:27:20,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:27:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:27:20,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:27:20,789 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870332544] [2019-12-18 14:27:20,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:27:20,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:27:20,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221185207] [2019-12-18 14:27:20,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:27:20,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:27:20,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:27:20,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:27:20,816 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 14:27:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:27:20,858 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 14:27:20,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:27:20,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:27:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:27:20,891 INFO L225 Difference]: With dead ends: 50 [2019-12-18 14:27:20,892 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:27:20,893 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:27:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:27:20,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:27:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:27:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:27:20,946 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:27:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:27:20,947 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:27:20,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:27:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:27:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:27:20,949 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:27:20,950 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:27:20,950 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:27:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:27:20,950 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-18 14:27:20,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:27:20,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891678254] [2019-12-18 14:27:20,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:27:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:27:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:27:21,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891678254] [2019-12-18 14:27:21,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:27:21,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:27:21,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175015925] [2019-12-18 14:27:21,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:27:21,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:27:21,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:27:21,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:27:21,086 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:27:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:27:21,117 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-18 14:27:21,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:27:21,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:27:21,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:27:21,119 INFO L225 Difference]: With dead ends: 39 [2019-12-18 14:27:21,120 INFO L226 Difference]: Without dead ends: 31 [2019-12-18 14:27:21,120 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:27:21,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-18 14:27:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-18 14:27:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-18 14:27:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-18 14:27:21,126 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-18 14:27:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:27:21,126 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-18 14:27:21,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:27:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-18 14:27:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:27:21,127 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:27:21,127 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:27:21,128 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:27:21,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:27:21,128 INFO L82 PathProgramCache]: Analyzing trace with hash 400560283, now seen corresponding path program 1 times [2019-12-18 14:27:21,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:27:21,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281030492] [2019-12-18 14:27:21,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:27:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:27:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:27:21,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281030492] [2019-12-18 14:27:21,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:27:21,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:27:21,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195256448] [2019-12-18 14:27:21,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:27:21,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:27:21,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:27:21,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:27:21,197 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-18 14:27:21,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:27:21,226 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-18 14:27:21,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 14:27:21,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:27:21,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:27:21,227 INFO L225 Difference]: With dead ends: 40 [2019-12-18 14:27:21,227 INFO L226 Difference]: Without dead ends: 30 [2019-12-18 14:27:21,228 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:27:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-18 14:27:21,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-18 14:27:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:27:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-18 14:27:21,233 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-18 14:27:21,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:27:21,233 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-18 14:27:21,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:27:21,233 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-18 14:27:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:27:21,234 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:27:21,234 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:27:21,235 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:27:21,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:27:21,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-18 14:27:21,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:27:21,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365205125] [2019-12-18 14:27:21,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:27:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:27:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:27:21,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365205125] [2019-12-18 14:27:21,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:27:21,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:27:21,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760292397] [2019-12-18 14:27:21,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:27:21,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:27:21,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:27:21,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:27:21,296 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 3 states. [2019-12-18 14:27:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:27:21,317 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-18 14:27:21,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:27:21,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 14:27:21,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:27:21,318 INFO L225 Difference]: With dead ends: 29 [2019-12-18 14:27:21,318 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:27:21,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:27:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:27:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:27:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:27:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:27:21,322 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:27:21,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:27:21,322 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:27:21,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:27:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:27:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:27:21,323 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:27:21,323 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:27:21,323 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:27:21,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:27:21,323 INFO L82 PathProgramCache]: Analyzing trace with hash -577580537, now seen corresponding path program 1 times [2019-12-18 14:27:21,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:27:21,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089878324] [2019-12-18 14:27:21,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:27:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:27:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:27:21,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089878324] [2019-12-18 14:27:21,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:27:21,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:27:21,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332327210] [2019-12-18 14:27:21,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:27:21,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:27:21,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:27:21,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:27:21,375 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:27:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:27:21,387 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:27:21,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:27:21,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:27:21,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:27:21,391 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:27:21,391 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:27:21,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:27:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:27:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:27:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:27:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:27:21,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:27:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:27:21,393 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:27:21,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:27:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:27:21,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:27:21,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:27:21 BasicIcfg [2019-12-18 14:27:21,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:27:21,403 INFO L168 Benchmark]: Toolchain (without parser) took 4036.98 ms. Allocated memory was 138.9 MB in the beginning and 245.9 MB in the end (delta: 107.0 MB). Free memory was 102.0 MB in the beginning and 135.3 MB in the end (delta: -33.3 MB). Peak memory consumption was 73.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:27:21,404 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 14:27:21,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.41 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 158.2 MB in the end (delta: -56.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:27:21,406 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.97 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:27:21,407 INFO L168 Benchmark]: Boogie Preprocessor took 30.01 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 155.2 MB in the end (delta: 972.9 kB). Peak memory consumption was 972.9 kB. Max. memory is 7.1 GB. [2019-12-18 14:27:21,410 INFO L168 Benchmark]: RCFGBuilder took 443.63 ms. Allocated memory is still 203.4 MB. Free memory was 154.2 MB in the beginning and 134.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:27:21,413 INFO L168 Benchmark]: TraceAbstraction took 2744.58 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 134.1 MB in the beginning and 135.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:27:21,419 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.41 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 158.2 MB in the end (delta: -56.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.97 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.01 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 155.2 MB in the end (delta: 972.9 kB). Peak memory consumption was 972.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 443.63 ms. Allocated memory is still 203.4 MB. Free memory was 154.2 MB in the beginning and 134.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2744.58 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 134.1 MB in the beginning and 135.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 29 SDslu, 41 SDs, 0 SdLazy, 29 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...