/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:32:55,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:32:55,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:32:55,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:32:55,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:32:55,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:32:55,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:32:55,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:32:55,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:32:55,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:32:55,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:32:55,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:32:55,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:32:55,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:32:55,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:32:55,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:32:55,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:32:55,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:32:55,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:32:55,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:32:55,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:32:55,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:32:55,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:32:55,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:32:55,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:32:55,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:32:55,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:32:55,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:32:55,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:32:55,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:32:55,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:32:55,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:32:55,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:32:55,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:32:55,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:32:55,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:32:55,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:32:55,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:32:55,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:32:55,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:32:55,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:32:55,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:32:55,226 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:32:55,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:32:55,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:32:55,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:32:55,228 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:32:55,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:32:55,229 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:32:55,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:32:55,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:32:55,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:32:55,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:32:55,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:32:55,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:32:55,230 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:32:55,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:32:55,230 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:32:55,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:32:55,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:32:55,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:32:55,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:32:55,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:32:55,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:32:55,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:32:55,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:32:55,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:32:55,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:32:55,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:32:55,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:32:55,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:32:55,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:32:55,511 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:32:55,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:32:55,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:32:55,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:32:55,530 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:32:55,531 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2019-12-27 07:32:55,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208902e04/e7ae320f9c654b72a2acfa7f92228d83/FLAGe919a16ee [2019-12-27 07:32:56,121 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:32:56,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2019-12-27 07:32:56,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208902e04/e7ae320f9c654b72a2acfa7f92228d83/FLAGe919a16ee [2019-12-27 07:32:56,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208902e04/e7ae320f9c654b72a2acfa7f92228d83 [2019-12-27 07:32:56,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:32:56,434 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:32:56,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:32:56,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:32:56,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:32:56,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:32:56" (1/1) ... [2019-12-27 07:32:56,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce61755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:56, skipping insertion in model container [2019-12-27 07:32:56,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:32:56" (1/1) ... [2019-12-27 07:32:56,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:32:56,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:32:57,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:32:57,016 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:32:57,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:32:57,161 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:32:57,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57 WrapperNode [2019-12-27 07:32:57,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:32:57,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:32:57,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:32:57,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:32:57,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:32:57,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:32:57,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:32:57,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:32:57,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... [2019-12-27 07:32:57,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:32:57,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:32:57,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:32:57,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:32:57,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:32:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:32:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:32:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:32:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:32:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:32:57,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:32:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:32:57,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:32:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:32:57,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:32:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:32:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:32:57,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:32:57,306 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:32:57,652 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:32:57,652 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:32:57,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:32:57 BoogieIcfgContainer [2019-12-27 07:32:57,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:32:57,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:32:57,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:32:57,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:32:57,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:32:56" (1/3) ... [2019-12-27 07:32:57,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb83352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:32:57, skipping insertion in model container [2019-12-27 07:32:57,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:32:57" (2/3) ... [2019-12-27 07:32:57,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb83352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:32:57, skipping insertion in model container [2019-12-27 07:32:57,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:32:57" (3/3) ... [2019-12-27 07:32:57,662 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2019-12-27 07:32:57,673 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:32:57,673 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:32:57,680 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:32:57,681 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:32:57,709 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,710 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,710 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,710 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,711 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,711 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,712 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,712 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,712 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,712 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,713 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,713 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,714 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,714 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,714 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,715 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,719 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,719 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,719 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,720 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,726 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,726 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,726 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,727 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,729 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,730 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,730 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,730 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:32:57,745 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:32:57,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:32:57,760 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:32:57,761 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:32:57,761 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:32:57,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:32:57,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:32:57,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:32:57,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:32:57,775 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 07:32:57,778 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 07:32:57,822 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 07:32:57,823 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:32:57,830 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:32:57,833 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 07:32:57,863 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 07:32:57,863 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:32:57,864 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:32:57,866 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:32:57,867 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:32:59,261 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 07:32:59,394 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 07:32:59,395 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 07:32:59,398 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:32:59,405 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:32:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:32:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:32:59,414 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:32:59,415 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:32:59,415 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:32:59,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:32:59,421 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-27 07:32:59,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:32:59,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828155716] [2019-12-27 07:32:59,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:32:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:32:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:32:59,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828155716] [2019-12-27 07:32:59,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:32:59,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:32:59,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585135286] [2019-12-27 07:32:59,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:32:59,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:32:59,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:32:59,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:32:59,647 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:32:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:32:59,687 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 07:32:59,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:32:59,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:32:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:32:59,713 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:32:59,714 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:32:59,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:32:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:32:59,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:32:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:32:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:32:59,766 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:32:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:32:59,767 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:32:59,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:32:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:32:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:32:59,768 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:32:59,768 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:32:59,769 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:32:59,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:32:59,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1392638966, now seen corresponding path program 1 times [2019-12-27 07:32:59,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:32:59,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126582464] [2019-12-27 07:32:59,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:32:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:32:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:32:59,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126582464] [2019-12-27 07:32:59,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:32:59,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:32:59,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843681236] [2019-12-27 07:32:59,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:32:59,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:32:59,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:32:59,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:32:59,894 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:32:59,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:32:59,914 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:32:59,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:32:59,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:32:59,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:32:59,915 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:32:59,916 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 07:32:59,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:32:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 07:32:59,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 07:32:59,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 07:32:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 07:32:59,921 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 07:32:59,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:32:59,922 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 07:32:59,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:32:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 07:32:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:32:59,923 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:32:59,923 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:32:59,923 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:32:59,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:32:59,923 INFO L82 PathProgramCache]: Analyzing trace with hash -794773568, now seen corresponding path program 1 times [2019-12-27 07:32:59,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:32:59,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91499027] [2019-12-27 07:32:59,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:32:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:32:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:32:59,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91499027] [2019-12-27 07:32:59,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:32:59,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:32:59,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232393818] [2019-12-27 07:32:59,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:32:59,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:32:59,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:32:59,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:32:59,974 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 3 states. [2019-12-27 07:32:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:32:59,980 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2019-12-27 07:32:59,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:32:59,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:32:59,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:32:59,981 INFO L225 Difference]: With dead ends: 21 [2019-12-27 07:32:59,981 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 07:32:59,982 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:32:59,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 07:32:59,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 07:32:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 07:32:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 07:32:59,986 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 07:32:59,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:32:59,986 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 07:32:59,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:32:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 07:32:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:32:59,987 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:32:59,987 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:32:59,987 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:32:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:32:59,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1131912426, now seen corresponding path program 1 times [2019-12-27 07:32:59,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:32:59,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265280356] [2019-12-27 07:32:59,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:00,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265280356] [2019-12-27 07:33:00,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:00,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:00,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551992720] [2019-12-27 07:33:00,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:00,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:00,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:00,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:00,045 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 07:33:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:00,072 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 07:33:00,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:00,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:33:00,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:00,074 INFO L225 Difference]: With dead ends: 25 [2019-12-27 07:33:00,074 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:33:00,074 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:33:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:33:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:33:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:33:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:33:00,080 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 07:33:00,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:00,080 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:33:00,080 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:33:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:33:00,082 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:00,082 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:00,082 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:00,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:00,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-27 07:33:00,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:00,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871649836] [2019-12-27 07:33:00,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:33:00,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871649836] [2019-12-27 07:33:00,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:00,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:00,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494890166] [2019-12-27 07:33:00,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:00,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:00,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:00,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:00,179 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:33:00,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:00,193 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:33:00,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:00,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:33:00,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:00,194 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:33:00,195 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:33:00,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:33:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:33:00,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:33:00,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:33:00,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:33:00,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:33:00,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:00,196 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:33:00,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:00,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:33:00,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:33:00,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:33:00 BasicIcfg [2019-12-27 07:33:00,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:33:00,203 INFO L168 Benchmark]: Toolchain (without parser) took 3768.99 ms. Allocated memory was 145.2 MB in the beginning and 248.5 MB in the end (delta: 103.3 MB). Free memory was 100.4 MB in the beginning and 161.3 MB in the end (delta: -60.9 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,204 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.35 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.2 MB in the beginning and 160.3 MB in the end (delta: -60.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.54 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,206 INFO L168 Benchmark]: Boogie Preprocessor took 25.39 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,207 INFO L168 Benchmark]: RCFGBuilder took 417.64 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.2 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,208 INFO L168 Benchmark]: TraceAbstraction took 2545.78 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 136.2 MB in the beginning and 161.3 MB in the end (delta: -25.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:00,213 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.35 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.2 MB in the beginning and 160.3 MB in the end (delta: -60.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.54 ms. Allocated memory is still 203.4 MB. Free memory was 160.3 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.39 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 417.64 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.2 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2545.78 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 136.2 MB in the beginning and 161.3 MB in the end (delta: -25.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 25 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 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...