/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/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:33:03,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:33:03,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:33:03,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:33:03,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:33:03,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:33:03,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:33:03,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:33:03,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:33:03,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:33:03,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:33:03,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:33:03,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:33:03,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:33:03,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:33:03,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:33:03,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:33:03,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:33:03,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:33:03,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:33:03,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:33:03,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:33:03,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:33:03,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:33:03,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:33:03,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:33:03,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:33:03,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:33:03,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:33:03,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:33:03,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:33:03,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:33:03,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:33:03,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:33:03,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:33:03,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:33:03,181 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 14:33:03,203 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:33:03,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:33:03,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:33:03,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:33:03,206 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:33:03,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:33:03,206 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:33:03,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:33:03,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:33:03,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:33:03,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:33:03,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:33:03,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:33:03,209 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:33:03,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:33:03,209 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:33:03,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:33:03,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:33:03,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:33:03,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:33:03,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:33:03,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:33:03,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:33:03,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:33:03,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:33:03,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:33:03,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:33:03,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:33:03,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:33:03,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:33:03,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:33:03,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:33:03,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:33:03,497 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:33:03,497 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:33:03,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2019-12-18 14:33:03,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d45664d/e316b43cdc954b87bbe5a88d6cb47657/FLAG86569565b [2019-12-18 14:33:04,095 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:33:04,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2019-12-18 14:33:04,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d45664d/e316b43cdc954b87bbe5a88d6cb47657/FLAG86569565b [2019-12-18 14:33:04,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d45664d/e316b43cdc954b87bbe5a88d6cb47657 [2019-12-18 14:33:04,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:33:04,434 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:33:04,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:33:04,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:33:04,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:33:04,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:33:04" (1/1) ... [2019-12-18 14:33:04,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0226f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:04, skipping insertion in model container [2019-12-18 14:33:04,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:33:04" (1/1) ... [2019-12-18 14:33:04,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:33:04,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:33:04,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:33:04,945 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:33:05,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:33:05,101 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:33:05,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05 WrapperNode [2019-12-18 14:33:05,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:33:05,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:33:05,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:33:05,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:33:05,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:33:05,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:33:05,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:33:05,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:33:05,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (1/1) ... [2019-12-18 14:33:05,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:33:05,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:33:05,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:33:05,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:33:05,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (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 14:33:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:33:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:33:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:33:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:33:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:33:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:33:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:33:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:33:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:33:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:33:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:33:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:33:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:33:05,274 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 14:33:05,644 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:33:05,645 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:33:05,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:33:05 BoogieIcfgContainer [2019-12-18 14:33:05,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:33:05,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:33:05,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:33:05,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:33:05,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:33:04" (1/3) ... [2019-12-18 14:33:05,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccd75d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:33:05, skipping insertion in model container [2019-12-18 14:33:05,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:33:05" (2/3) ... [2019-12-18 14:33:05,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccd75d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:33:05, skipping insertion in model container [2019-12-18 14:33:05,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:33:05" (3/3) ... [2019-12-18 14:33:05,655 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2019-12-18 14:33:05,665 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:33:05,666 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:33:05,674 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:33:05,675 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:33:05,704 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,704 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,705 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,705 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,706 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,706 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,706 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,707 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,707 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,707 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,707 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,708 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,708 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,709 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,709 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,709 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,709 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,713 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,714 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,714 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,714 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,720 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,721 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,721 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,733 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,733 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,733 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,734 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:33:05,749 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:33:05,767 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:33:05,768 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:33:05,768 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:33:05,768 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:33:05,768 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:33:05,768 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:33:05,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:33:05,769 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:33:05,781 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:33:05,783 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:33:05,824 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:33:05,824 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:33:05,832 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 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:33:05,836 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:33:05,854 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:33:05,854 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:33:05,856 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 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:33:05,858 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:33:05,859 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:33:07,252 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 14:33:07,466 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-18 14:33:07,466 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 14:33:07,472 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:33:07,495 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:33:07,499 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:33:07,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:33:07,519 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:33:07,521 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:33:07,522 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:33:07,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:33:07,529 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-18 14:33:07,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:33:07,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614374462] [2019-12-18 14:33:07,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:33:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:33:07,819 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 14:33:07,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614374462] [2019-12-18 14:33:07,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:33:07,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:33:07,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272724898] [2019-12-18 14:33:07,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:33:07,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:33:07,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:33:07,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:33:07,841 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:33:07,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:33:07,879 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 14:33:07,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:33:07,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:33:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:33:07,914 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:33:07,914 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:33:07,921 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 14:33:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:33:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:33:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:33:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:33:07,971 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:33:07,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:33:07,972 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:33:07,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:33:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:33:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:33:07,976 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:33:07,976 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:33:07,977 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:33:07,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:33:07,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1647367954, now seen corresponding path program 1 times [2019-12-18 14:33:07,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:33:07,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801829696] [2019-12-18 14:33:07,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:33:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:33:08,086 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 14:33:08,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801829696] [2019-12-18 14:33:08,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:33:08,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:33:08,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126419577] [2019-12-18 14:33:08,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:33:08,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:33:08,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:33:08,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:33:08,090 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:33:08,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:33:08,115 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-18 14:33:08,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:33:08,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:33:08,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:33:08,117 INFO L225 Difference]: With dead ends: 39 [2019-12-18 14:33:08,117 INFO L226 Difference]: Without dead ends: 31 [2019-12-18 14:33:08,118 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 14:33:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-18 14:33:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-18 14:33:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-18 14:33:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-18 14:33:08,123 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-18 14:33:08,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:33:08,124 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-18 14:33:08,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:33:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-18 14:33:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:33:08,125 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:33:08,125 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:33:08,125 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:33:08,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:33:08,126 INFO L82 PathProgramCache]: Analyzing trace with hash 445286946, now seen corresponding path program 1 times [2019-12-18 14:33:08,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:33:08,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524123293] [2019-12-18 14:33:08,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:33:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:33:08,177 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 14:33:08,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524123293] [2019-12-18 14:33:08,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:33:08,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:33:08,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148706241] [2019-12-18 14:33:08,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:33:08,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:33:08,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:33:08,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:33:08,179 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-18 14:33:08,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:33:08,210 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-18 14:33:08,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 14:33:08,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:33:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:33:08,211 INFO L225 Difference]: With dead ends: 40 [2019-12-18 14:33:08,211 INFO L226 Difference]: Without dead ends: 30 [2019-12-18 14:33:08,212 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 14:33:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-18 14:33:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-18 14:33:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:33:08,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-18 14:33:08,216 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-18 14:33:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:33:08,217 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-18 14:33:08,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:33:08,217 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-18 14:33:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:33:08,218 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:33:08,218 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:33:08,218 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:33:08,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:33:08,219 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-18 14:33:08,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:33:08,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383537320] [2019-12-18 14:33:08,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:33:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:33:08,302 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 14:33:08,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383537320] [2019-12-18 14:33:08,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:33:08,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:33:08,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875027962] [2019-12-18 14:33:08,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:33:08,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:33:08,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:33:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:33:08,305 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 3 states. [2019-12-18 14:33:08,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:33:08,326 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-18 14:33:08,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:33:08,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 14:33:08,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:33:08,327 INFO L225 Difference]: With dead ends: 29 [2019-12-18 14:33:08,327 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:33:08,327 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 14:33:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:33:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:33:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:33:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:33:08,332 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:33:08,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:33:08,332 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:33:08,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:33:08,333 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:33:08,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:33:08,333 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:33:08,333 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:33:08,334 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:33:08,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:33:08,334 INFO L82 PathProgramCache]: Analyzing trace with hash 142093797, now seen corresponding path program 1 times [2019-12-18 14:33:08,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:33:08,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720150462] [2019-12-18 14:33:08,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:33:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:33:08,429 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 14:33:08,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720150462] [2019-12-18 14:33:08,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:33:08,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:33:08,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054621249] [2019-12-18 14:33:08,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:33:08,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:33:08,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:33:08,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:33:08,433 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:33:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:33:08,447 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:33:08,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:33:08,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:33:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:33:08,448 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:33:08,448 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:33:08,449 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 14:33:08,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:33:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:33:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:33:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:33:08,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:33:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:33:08,450 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:33:08,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:33:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:33:08,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:33:08,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:33:08 BasicIcfg [2019-12-18 14:33:08,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:33:08,466 INFO L168 Benchmark]: Toolchain (without parser) took 4030.29 ms. Allocated memory was 139.5 MB in the beginning and 245.9 MB in the end (delta: 106.4 MB). Free memory was 102.5 MB in the beginning and 139.6 MB in the end (delta: -37.1 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,467 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.41 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 159.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.76 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,475 INFO L168 Benchmark]: Boogie Preprocessor took 36.79 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,476 INFO L168 Benchmark]: RCFGBuilder took 433.59 ms. Allocated memory is still 203.9 MB. Free memory was 155.8 MB in the beginning and 135.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,479 INFO L168 Benchmark]: TraceAbstraction took 2814.71 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 134.3 MB in the beginning and 139.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:33:08,488 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.41 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 159.2 MB in the end (delta: -57.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.76 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.79 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.59 ms. Allocated memory is still 203.9 MB. Free memory was 155.8 MB in the beginning and 135.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2814.71 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 134.3 MB in the beginning and 139.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 25 SDslu, 56 SDs, 0 SdLazy, 30 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 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, 919 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...